|Grade||Genuine Rolex||3a swiss||swiss||automatic|
|Movement||Rolex Calibre 3235||Genuine Swiss3235 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|
|Engine||Rolex Calibre 2836/2813|
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters. But make sure to close the crown properly. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.
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.
Watch Case: 316L. The case is 316L, and its density is close to iron, which generally does not affect the human body. This material is often used in the straps of Swiss watches.
Case Back: Solid. The sturdy back cover can make the watch more durable, and they can withstand harsh outdoor environments such as rain, snow, cold or hot weather.
Band Material: 316L. The raw material in this band is 316L for daily seawater corrosion, and 316L steel is completely sufficient.
Dial Markers: Diamonds. The diamonds on the dial tell us what time it is, which is different from a normal dial.
Clasp: Fold Over Clasp. The innovative design of this watch is a great way to protect and store your watch. It has a unique design that creates a secure lock, which can be easily opened and closed.
Bezel Material: Stainless Steel. Bezel material is more simple and endurable. It makes you improve your temperament from the inside out.