|Grade||Genuine Rolex||3a swiss||swiss||automatic|
|Movement||Rolex Calibre 4130||Genuine Swiss 4130 movement||Swiss 7750 Movement||Asian MingZhu Movement|
|Time Accuracy||-3/+5 sec per day COSC certified||-5/+6 sec per day COSC certified||-10/+10 sec per day COSC certified||-1/+2 min per day COSC certified|
|Stainless Steel Type||904L Stainless Steel||904L Stainless Steel||316L Stainless Steel||316L Stainless Steel|
|Crystal||Sapphire crystal||Sapphire crystal correct date magnification||Sapphire crystal||Mineral Glass|
|Logo & Markings||laser etchings||Exact on entire watch||90% Exact on entire watch||70% Exact on entire watch|
|Dial||Genuine Rolex||Exact detail and font||90% exact detail and font||70% Exact detail and font|
|Luminous Markers||Rolex Lumen||SuperLuminova Swiss Lumen||Swiss Lumen||Normal Lumen|
|Waterproof||100m on standard models||Tested up to 300m||Tested up to 30m||Life waterproof|
|Life expectancy||Lifetime||Lifetime||3-5 years||1-2 years|
|Warranty||2 Years||Up to 5 Years||Up to 3 Years||Up to 1 Years|
|Engine||Rolex Calibre 7750|
Band Material: Leather.We use a leather strap will make the wearer look more temperamental.
Watch Case: 316L. In this case, 316L, which has the best daily seawater corrosion, is used, and 316L steel is completely sufficient.
Case Back: Solid. The case uses a thickened solid case back, which can transmit impact better than the plastic case back of the case.
Crystal: Sapphire Crystal. The sapphire crystal mirror has a special anti-reflective coating to minimize light reflection and provide scratch resistance without affecting its brightness. Sapphire crystal is a highly transparent crystal that can be used to make optical lenses, diffractive optical elements, and filters. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. About the watch, the hands is silver-tone which is pretty cool and fashionable.
Second Markers: Minute Markers around the outer rim. The minute mark around the outer edge of the glass is a design element representing time, also called a clock hand, which has been used in many famous designs, such as watches and other objects.
Dial Markers: Arabic Numeral. Arabic numerals uses some simple number marks to display the time, making the dial more simple and stylish.
Luminiscence: Hands. The luminosity of the watch is hands. It can help you know the corresponding time when you running in dark.
Bezel Material: Stainless Steel. Stainless steel bezel is a material that a unique structure that makes it an excellent choice for watches. The material can resist scratches, abrasions and indentation. This bezel material is the most resistant to heat and cold of all materials used in watchmaking.
Clasp: Deployment. The clasp design of the watch which allows the user to fold it over in multiple positions or angles for unique use.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters, which is similar as real watch. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.