|Grade||Genuine Rolex||3a Swiss||Swiss||Automatic|
|Movement||Rolex Calibre 3255||Genuine Swiss 3255 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|
|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|
|Dial Color||Black Dial|
Crystal: Sapphire Crystal. Watches made of sapphire crystal are a special anti-reflective coating that minimizes light reflection and provides scratch resistance without affecting its brightness. Tips: The Automatic is applied with mineral glass instead of sapphire.
Water Resistance: 30 meters. About the watch, the waterproof depth is 30 meters. But please make sure you close the crown properly. Tips: The Automatic is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.
Function: Date, Hour, Minute, Second. The watch has many functions. The watch has a indicate date to measure time, a minute dial is used to estimate the current time, and a second dial is used to estimate the time after the interval.
Second Markers: Minute Markers around the outer rim. The design of other marks in watches, also known as clock hands, has been used in many well-known designs such as watches and other objects.
Clasp: Fold Over Clasp. This is a great way to protect and store your watch, which is more convenient for disassembly and replacement, and also ensures the quality and comfort of the strap.
Case Back: Solid. The sturdy back cover can transmit impact better than the plastic back cover of the watch.
Dial Markers: Diamonds. Watches with diamond dial marks can help us check the time anytime, anywhere.
Watch Case: 316L. The case is 316L, which swept all major material masters and became the mainstream material for high-end fashion jewelry in Europe and America.
Bezel Material: Stainless Steel. The stainless steel bezel material is one of the best materials for watches. It has been around since ancient times. It has been used as a decorative material for watches and clocks for more than two thousand years. A watch face made from stainless steel bezel materials can withstand extreme temperatures.
Hand: Silver-tone. The watch’s hands is silver-tone, which fits your watch’s dial well.
3a Swiss, 5a Swiss, Automatic, Swiss, Top Swiss