Comparison Casio LTP-V007G-9E vs Casio LTP-1275G-9A

The accuracy of the rate is usually determined by the largest error — the deviation from the reference time, which can occur in a month when the watch is constantly running in normal mode. Accordingly, the smaller the number in this paragraph, the more accurate the clock. In addition, the accuracy of the movement is a kind of status indicator: if the error exceeds the values stated in the characteristics, this may indicate a malfunction in the mechanism.

If the accuracy indicators are the same both in advance and in lag, one number is indicated in the characteristics — for example, 30 sec / month (i.e. +/-30 sec / month); however, many mechanisms have unequal deviations, for example -15/+25 sec/month. Also note that this parameter is relevant only for quartz watches (see “Movement type”): in mechanical models, the accuracy of the rate is noticeably lower, it is measured in seconds not per month, but per day.

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.

— Brass. Inexpensive material used mainly in watches of the corresponding price category. The composition is an alloy based on copper and zinc. Brass bodies have a pleasant golden colour, but their resistance to corrosion is usually very low. Because of this, such watches darken very quickly, and oxides can stain the wearer's skin and even lead to irritation. To correct the situation, various protective coatings, stainless steel covers, etc. can be used; however, even these measures are not able to completely eliminate this drawback.

— Stainless steel. Inexpensive and at the same time very practical material found in watches of all price categories. "Stainless steel" looks good, perfectly resists corrosion and scratches, retains its presentation for a long time and does not cause allergies. However it has a rather large weight, but for many users, the massiveness of the watch is an advantage, not a disadvantage.

— Titan. Premium material used in watches of the corresponding price level. Titanium alloys combine lightness and high strength, in addition, they are less thermally conductive than steel, due to which they do not “cool” the hand. They are practically not subject to corrosion, do not require protective coatings and are hypoallergenic. On the other hand, such cases are quite sensitive to scratches.

— Plastic. Common features of al...l types of plastic are ease of processing, relatively low cost, low weight, hypoallergenicity, moisture resistance and poor thermal conductivity. For a number of reasons, this material is considered optimal primarily for sports watches, including “diving” (waterproof) watches. At the same time, it should be noted that many types of plastic are used in modern watches, including high-strength varieties that are not inferior in reliability to steel. Therefore, this material is found in all price categories, from low-cost to top; The quality of the case is usually directly related to the cost of the watch.

— Aluminium. "Watch metal", considered a little more advanced than stainless steel. The aluminium alloy is also durable, resistant to corrosion and scratches, and has a solid appearance. At the same time, on the one hand, it is noticeably lighter, on the other hand, it is more expensive.

— Copper. By itself, copper has a pleasant reddish-brown tint, but it does not tolerate prolonged contact with the skin — the surface begins to oxidize, which leads not only to skin contamination, but also to irritation. Therefore, this material is usually used in combination with protective coatings. In fact, it has no advantages over the same "stainless steel", and therefore it is used quite rarely — and not so much for practical or even aesthetic reasons, but in order to distinguish watches from other models.

— Carbon. Composite material, in fact, is high-quality plastic: carbon fiber strands filled with polymer filler. Carbon is notable for its combination of low weight with very high strength; in general, it surpasses even steel in reliability; at the same time, it has many advantages of plastic, such as moisture resistance and low thermal conductivity. The disadvantage of such housings, in addition to high cost, is sensitivity to point impacts.

— Ceramics. Ceramics are various materials obtained by sintering and firing at high temperatures. Watch cases are usually made of high-quality ceramics, which are distinguished by their solid appearance and very high scratch resistance, and they cost accordingly. At the same time, they are quite sensitive to shocks, so a ceramic case is often combined with a stainless steel or other metal back cover.

— Gold. The case is made of jeweler's gold or has a gold-plated finish. Note that the colour of such a case can be different: in addition to the classic yellow, there are also white and red gold. Anyway, such watches are very expensive, and look accordingly; they are designed mainly for those who need not so much a device for determining the time as a rich fashion accessory.

— Silver. Although cases made of silver jewelry are much cheaper than gold ones, this material still belongs to the status ones, and is used not so much for practical reasons, but as a symbol of the high cost of watches and the wealth of their owner. However, for a number of reasons, silver has not received much popularity in watches.

— Wolfram. Tungsten alloys are not cheap, but they are very strong and reliable, and also look stylish. Another feature of this material is its very high melting point; from the practical point of view, this point is not significant, but it is important as a fashion detail, emphasizing the high reliability of tungsten. At the same time, for a number of reasons, such alloys are not widely used in watches.

— Bronze. Quite a rare and specific option, used similarly to copper — in order to give the watch a stylish look. The basis of bronze, in fact, is copper, and tin is most often added to this alloy, but other components can also be used. Accordingly, the colour of such material can be different — yellowish, reddish, brown.

As the name suggests, this parameter determines the degree of resistance of the watch to moisture. It is traditionally stated as the maximum depth under water at which the watch is able to remain watertight; however, it must be borne in mind that this number is very arbitrary. The fact is that when calculating the maximum immersion depth, only the static pressure of water is taken into account, that is, the pressure at complete immobility; at the same time, any movement creates dynamic pressure, which significantly increases the load on the body. In practice, this means that a mark of, for example, 50 m does not mean that you can dive to a depth of 50 m with a watch.

Modern water protection markings correspond to the following practical possibilities:

— 30 m(same as “Water Resistant” without any numbers). Entry level, drops of water are allowed, but not strong splashes. For example, such a watch can be left on in the rain or when washing, but when showering or washing a car, it should be left in a safe place. Of course, there is no talk of immersion in water.

- 50 m. Minimum water resistance, allowing the watch to be immersed in water. These watches can usually be used for swimming, and in some cases even jumping into the water (but not from towers), but they are not suitable for more serious tasks like surfing, snorkeling or scuba diving. As a rule, buttons are not allowed...to be used underwater.

- 100 m. This degree of water protection allows not only swimming, but also diving to shallow depths, however, it is still considered insufficient for surfing, jumping from towers and scuba diving.

- 200 m. Watches with such water protection are classified as “divers”; models and can withstand scuba diving to depths of up to 20 m.

- 300 m or more. Professional diving models suitable for diving to significant depths.

Please note that the characteristics described are approximate. Specific indicators of water resistance and the possibility of using the watch with water should be clarified according to the official data of the manufacturer.

The nominal size of a watch case in diameter (for round cases) or width (for other options, see "Case Shape"). In the most miniature modern models, this size is 21 – 25 mm or even less, among the largest there are cases of 46 – 50 mm and even larger.

Larger watches are more convenient in the sense that the dial readings are better visible on them, and it is easier to provide various additional functions in the design. On the other hand, small watches look neater and create less discomfort directly when worn. In addition, female models (see "Gender") are traditionally made more miniature than male ones. So the choice for this indicator depends mainly on the intended specifics of the application: for example, large cases are best suited for outdoor activities and tourism, about 41 – 45 mm in size, for household wear (regardless of gender) — about 31 – 35 mm, and as an accessory to an evening dress, a small watch of 30 mm or less would be more appropriate.

Also note that the size of a compatible strap/bracelet is associated with this indicator — see "Strap Width" for details.

The thickness of the watch case. A fairly obvious parameter; we only note that nowadays it is customary to attribute watches with a thickness of less than 7 mm to ultra-thin models. This design has both aesthetic and quite practical meaning — a thin watch will be useful for those who wear narrow sleeves with tight-fitting cuffs.

Total weight of the watch. As a rule, it is indicated taking into account the complete strap/bracelet.

The lightest modern watch weighs no more than 50 g. The most popular models weigh 50 - 100 g, and weight more than 150 g most often means not only a large, but also a fairly advanced device, usually for sports and tourism purposes.

Both light and heavy weight have their advantages: light watches create minimal inconvenience when worn, while massive watches are subconsciously perceived as a solid and reliable device.