|Grade||Genuine Rolex||3a swiss||swiss||automatic|
|Movement||Rolex Calibre 3135||Genuine Swiss 3135 movement||Swiss 2836 Movement||Asian 2813 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|
|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|
Watch Case: 316L. The case is made of 316L, which can be polished, frosted, and can be plated with a variety of materials. It has stable performance and is the best choice for the case.
Case Back: Solid. The sturdy case back can make the watch more durable, and they can withstand harsh outdoor environments such as rain, snow, cold or hot weather.
Crystal: Sapphire Crystal. Sapphire glass has lustrous, transparent crystals and is often used in high-precision optical instruments. Tips: The A watch is applied with mineral glass instead of sapphire.
Second Markers: Minute Markers around the outer rim. The minute mark on the outer edge of the glass is one of the most recognized design elements in all industries. It is also called the hand of a clock. This design element is used in many famous designs such as clocks and other objects.
Dial Markers: Dot. According to a study, the human eye is sensitive to point, to determine time by looking at the dot, which is different from normal dial.
Clasp: Deployment. The clasp of the watch which allows the user to fold it over in multiple positions or angles for unique use.
Water Resistance: 30 meters. The waterproof depth of the watch is 30 meters, full enough for your daily life. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.
Function: Date, Hour, Minute, Second. Watches are the most important equipment in our daily lives. Watches can measure time and seconds accordingly.