Comparison Casio W-219H-8B vs Casio B640WDG-7

This parameter determines, first of all, the appearance of the clock, and only then — the functionality. In addition, the wearing of "men's" and "women's" watches by adults is related solely to the rules of style and social norms, and not to the technical characteristics of different models.

— Men's. Men's watches have a rather large case and a relatively discreet, dim design — which, however, can be different, from strict classics with a single scale on the dial to "hi-tech" with an abundance of additional features.

— Women's. This type of watch stands out primarily for its original design, more varied and bright than in men's models; this applies not only to the watch itself, but also to complete bracelets / straps. A fairly large number of such models are designed to play the role of not only a wrist chronometer, but also a fashion accessory. In addition, they are generally smaller and more elegant, and even rather large women's watches weigh less than men's watches of the same size.

— Unisex. A watch with a neutral (in terms of gender) design, without pronounced details that would characterize it as masculine or feminine. In general, the design of such watches is often quite bright and original, many unisex models are designed for a youth audience, lovers of the original style, etc.

— Baby. Watches...designed for children have two main features. One of them is a characteristic design: in bright colours, often in the style of popular cartoons or comics. The second is that regular bracelets or straps are designed for a small child's hand and are equipped with the simplest clasps so that the small owner does not have problems with putting on / taking off. Also note that children's watches are distinguished by relatively simple functionality — you will not find special features like world time, chronograph, barometer, etc. in them (see "Features").

A caliber can be described as the type of movement used in a watch. It is expensive and impractical to design a unique movement for each watch model, so most manufacturers often use the same movement in different watch models, sometimes with significantly different designs. The term "caliber" is due to the fact that initially the type of movement was designated by a number (in inch lines) corresponding to its largest size; however, today unique names or alphanumeric indices that are not directly related to sizes are widely used.

Knowing the name of the caliber on which the watch you are interested in is built, you can, if desired, find more detailed information about the mechanism and determine how its characteristics meet your requirements.

Clock face background colour. Indicated for models with pointer or combination dials (see "Dial type"); in purely electronic models, usually, either a grey substrate (for conventional LCDs) or a dark base (for LEDs) is used.

The most popular in modern watches are black, white, silver and blue dials. However, in addition to this, other shades can be found on the market — in particular, beige, yellow, green, golden, brown, red, orange, pink, grey and purple. A special case are watches with chameleon glasses (see below).

Some models are available in several colour options, in such cases these options are listed separated by commas — for example, "white, red, silver." If the dial is painted simultaneously in 2 or 3 colours, they are indicated as a combination — for example, "white with red" or "white with yellow and red". And multi-coloured models include models in which more than 3 colours are used for the dial.

The shape of the watch case; most often the dial has the same shape, but there are exceptions (for example, a rectangular display in a round case).

This parameter practically does not affect the functionality, so the choice in this case is related solely to how convenient and pleasant-looking one or another option is for you. Also, shape data can be useful if the watch is chosen as a fashion accessory that plays a well-defined role in the image being created. As for specific options, round cases are the most common nowadays — they are easy to manufacture, look neat and fit almost any style of watch. Rectangular watches are also quite popular, they can also belong to different styles; however, such cases are more bulky than round cases, and therefore are used less frequently. The square shape is actually a variation of the rectangular shape. Oval is considered to be suitable primarily for women's watches, although there are also single men's models with such cases. There are other types of cases — polygonal, barrel-shaped, as well as products in non-standard design.

The main colour of the watch case.

Modern watches are quite diverse in colour options. The most widespread models are in shades of " stainless steel ", golden and black ; however, in addition to this, on the market you can find, in particular, white, yellow, green, brown, red, orange, pink, silver, grey, blue and purple cases.

In general, the colour of the case is a fairly obvious parameter; Let's note only some of the nuances associated with marking:

— Multi-coloured models include models in which there is no clearly defined primary colour. If there is such a colour, it is indicated in the characteristics. And for two-tone cases, an additional colour can be specified, for example, "stainless steel with gold " or "black with blue "

— Silver, among other things, are plastic cases without additional coloring.

— "Stainless steel" in this case is a colour, not a material; other metals (e.g. alumin...ium and titanium) that are not complemented by PVD coating (see “Case Coating”) may have this shade. And the cases of gold watches, in turn, are not necessarily made of gold — red and white gold are also used in jewelry.

— Camouflage coloring is indicated separately — such watches are designated as "military", and here, again, the main shade of the coloring is given. However, not every military model has camouflage on the body; see below for details.

The material from which the bracelet/watch strap is made. Note that the division into bracelets and straps is rather arbitrary, the basis for it is precisely the material. In modern watches, there may be such options:

— Nylon strap. Nylon is a synthetic material that has a characteristic structure in the form of interwoven threads in watch straps. In most cases, these threads are quite large, due to which the nylon straps are similar in appearance and texture to the ties of tourist backpacks; this option is typical for sports watches. However, there is another variety — finely woven nylon, which is used mainly in women's watches (see "Gender"). Of the practical properties of this material, it is worth noting, first of all, unpretentiousness and resistance to water, including salty; in addition, it can be given almost any colour, and the combination of multi-coloured fibers allows you to create original and bright straps.

— Rubber strap. In this case, rubbers mean elastic materials that, in terms of properties, are a cross between plastic and rubber. Rubber is denser, harder and stronger than rubber, while noticeably softer and more flexible than plastic, which allows it to be used for watch straps. Of the advantages of this option, it is worth noting, first of all, high wear resistance and moisture resistance, which, combined with the appearance features, makes these straps a good option f...or watches in a sporty design. But among the classic models, rubber is usually used in inexpensive watches and has rather modest characteristics.

— Leather strap. Genuine leather straps are typical for quite expensive watches: this material is expensive, while it has a solid and rich appearance. In addition, it is notable for its high strength, moisture resistance and durability. Of the shortcomings of the skin, in addition to the price, it is worth noting a certain tendency to scratches, as well as increased care requirements — otherwise the product may lose its “presentation”.

— Leatherette strap. As the name suggests, leatherettes were created as an alternative to real leather. Their main advantage is a relatively low price: being practically indistinguishable from a leather bracelet, such a bracelet will cost much less. On the other hand, this material is less durable, wears out rather quickly and is generally not so reliable. Note that today different types of leather substitutes are used, and the quality of this material usually directly depends on its price.

— Steel bracelet. The watch bracelet consists of links connected to each other; in this case they are made of stainless steel. This material is strong, durable, practically not subject to corrosion, moreover, it has a solid appearance and is quite pleasant to the touch; at the same time, the cost of steel allows it to be used even in inexpensive watches. Such bracelets are quite “heavy”, however, some owners consider this moment to be a virtue, because. it gives a feeling of solidity and reliability. And of any significant shortcomings of steel, one can only note high thermal conductivity — the bracelet will noticeably “cool” the hand if the watch has lain in the cold for some time (though not for long — just a few minutes).

— Milanese bracelet. Milanese are called metal bracelets made of links of very fine weaving (about 1 mm in size, or even less). The material of such a bracelet may be different; most often it is steel, but more expensive metals are also found. Anyway, such a bracelet has an original appearance, and also provides good air access, allowing the skin to breathe. Among the shortcomings of Milan, it can be noted that the links can “bite” the hair on the arm, creating discomfort. Thus, and also to keep the cost down, some watches do not use Milanese weave on the entire bracelet, but only on part of it (usually it is about half of the entire bracelet).

— Titanium bracelet. Bracelets made of titanium alloy are much stronger than steel, with less weight. They also conduct heat less well, making them better suited for cold weather. At the same time, titanium is characterized by almost all the same advantages: high strength and reliability, solid appearance, resistance to corrosion. Its main disadvantage is the high price, due to which this type of bracelet is found mainly in premium watches.

— Gold bracelet. Jewelery gold bracelets are mainly used with cases made of the same material (see the relevant paragraph). A watch with a gold bracelet is not so much a device for measuring time as a status accessory, or even a piece of jewelry; the latter is especially characteristic of female models.

— Silver bracelet. Silver bracelets are found exclusively in watches with cases made of the same material. Like the gold described above, this material is used not so much for practical as for fashion reasons — in order to give the watch a rich appearance and emphasize the status of its owner. At the same time, for a number of reasons, silver bracelets are extremely rare.

— Ceramic bracelet. A premium material found predominantly in women's watches (although there are also men's models with ceramic bracelets). Ceramic not only looks good, but also retains its original appearance for a long time — thanks to its excellent resistance to scratches, dirt and stains. In addition, this material has a relatively small weight; and the high cost in this case is more of a virtue — it emphasizes the high level of watches. Among the shortcomings of ceramic bracelets, some fragility can be noted — a strong blow can split the links.

— Plastic bracelet. This category includes both the actual bracelets, woven from individual links, and straps made of flexible plastic. The second variety is similar to rubber straps, see the relevant paragraph for more details. As for the bracelets, they are usually combined with cases made of similar materials (plastic or carbon), and can be used in different categories of watches — both relatively inexpensive and quite advanced. The quality of plastic in this case, usually, is directly related to the price category of the device.

— Tungsten bracelet. Bracelets made of tungsten alloy are highly durable and reliable; these properties are further emphasized by the fact that tungsten has a very high melting point. And yes, it does look good. At the same time, it does not have key advantages over other premium alloys (titanium, see above) and is noticeably more expensive due to the complexity of production. As a result, such bracelets are extremely rare, mainly in combination with cases made of the same material (see "Case Material").

— Aluminium bracelet. Quite a rare option, found in single watch models. Bracelets made of aluminium are lighter than steel, they are not inferior to them in terms of strength and reliability, however, they are more expensive.

The main colour of the watch strap/bracelet.

The most popular shades nowadays are stainless steel(the colour of most metal bracelets, not necessarily steel ones), golden(bracelets made of gold and "gold"), black(strap made of different materials, including rubber and nylon, as well as separate bracelets) and brown(mostly leather straps). Other colour options include beige, white, yellow, green, camouflage ( military style), red, orange, pink, silver, grey, blue, and purple.

In addition, some models of watches are equipped with two-tone straps. Most often, white, gold and black are used as secondary colours, and this colour is specified after the main one — for example, “blue with white” or “stainless steel with gold”. If this paragraph lists several colours separated by commas — for example, "black, red, blue" — this means...that the watch is either sold in several versions that differ in the colour of the strap, or comes with several interchangeable straps / bracelets of the corresponding colours at once. This nuance should be clarified separately.

The type of clasp used on the original watch band/bracelet.

In modern times, either fasteners of the classical design with a buckle or clip -on earrings are used. Hook-and-loop is extremely rare, and in some women's models (the so-called bracelet watches), there is no clasp at all. Here is a more detailed description of each of these options:

– Classic (with buckle). Clasp similar in design to a belt buckle. When it is fastened, one of the halves of the strap, which has holes, is threaded through the buckle and fixed with a pin placed in one of the holes, as well as with special loops. This procedure is somewhat less convenient than fastening the clip; in addition, the pin protrudes slightly above the strap and, in case of an unfortunate set of circumstances, can catch on something (the probability of this is extremely small, but still there). On the other hand, buckles are perfect for straps made from leather, rubber, and other soft materials. And compared to clips, such fasteners are much easier to adjust in size — when fastening, it is enough to choose a hole corresponding to the coverage of the hand.

— Clip (unfolds). A type of clasp used primarily on metal bracelets. The most widespread type of clip, consisting of two curved plates connected by an axis. When unfastened, they open like a book, increasing the...overall length of the bracelet and allowing you to easily remove the watch from your hand, and when fastened, they fold close to each other and are fixed, securing the bracelet on your wrist. The second popular type of clip is "butterfly": it uses two movable plates attached to the base with the help of rotary axes and opens like butterfly wings (hence the name). Note that there are also straps with clips on the market, most often leather ones; they are more expensive than buckle straps and somewhat more difficult to adjust in length, but are more secure and do not have a protruding pin that can cause inconvenience.

— Hook-and-loop. A traditional Hook-and-loop fastener consisting of two parts — a felt lining and a retainer with a set of microscopic hooks that, when fastened, cling to the fibers of the felt and hold the fastener in place. Such devices are used in straps made of soft materials, mainly nylon, and are very rare in modern watches. This is mainly due to the fact that as the felt part of the Hook-and-loop wears out, it quickly loses its working properties. Of the advantages of such clamps, one can note the simplicity and speed of fastening and unfastening.

— Is absent. This option is typical mainly for the so-called bracelet watches, designed mainly for a female audience. Such products, in accordance with the name, are not so much traditional watches as jewelry, complemented by watches; they are made in the appropriate design, often with the use of precious metals and stones.
It is also worth mentioning that not all bracelet watches are devoid of clasps — there are models that have such devices. However, the design of fasteners in such cases is usually quite far from the buckles, clips and Hook-and-loop used in conventional watches, so the characteristics for them also indicate the option "Clasp — no".

A mechanism that allows you to quickly change the length of the bracelet without disassembling it or using additional devices. Usually performed in the form of a miniature screw, by turning which, you can adjust the length; the range of such adjustment is most often of the order of 10 – 15 mm.

Such a mechanism is relevant primarily for watches with a clip-on clasp (see the relevant paragraph). With traditional adjustment, the clasp has to be disassembled, which requires both tools and certain skills. The quick extension system, in turn, is extremely easy to use and is available even in a complete "separation from civilization" — for example, in nature.