|Grade||Genuine Rolex||3a swiss||swiss||automatic|
|Movement||Rolex Calibre 4130||Genuine Swiss4130 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/Mingzhu Engine|
Crystal: Sapphire Crystal. A good sapphire mirror is the only high-quality anti-reflective material that provides scratch resistance without affecting its brightness. Using this new technology, you can protect the surface of your watch at the most important moments in your life. Tips: The A watch is applied with mineral glass instead of sapphire.
Band Material: 316L. The material in this band comes from 316L stainless steel, which has very good corrosion resistance and good texture.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it 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.
Clasp: Fold Over Clasp. This watch case has a designed clasp to make it easier and faster for the user to open and fold the watch case to keep it secure.
Case Back: Solid. usually uses a solid back cover, which can transmit impact better than the plastic back cover of a watch.
Bezel Material: Stainless Steel. Stainless steel bezel is a material that is the perfect material to use when designing a watch. The bezel will have endurable elegance, high performance, and high durability.
Watch Case: 316L. The case is made of the hardest material 316L, which is a high-grade stainless steel alloy. It is corrosion resistant, easy to weld, durable and safe to use.
Hands: Gold-tone. The hands of the watch is gold-tone, which looks pretty stunning and high-end.
Luminiscence: Hands and Markers. Regarding this watch, luminescence is hands and markers. It makes your watch look more high-end.