|Grade||Genuine Rolex||AAAAA Clone||AAA Replica||A Replica|
|Movement||Rolex Calibre 4130||Genuine Swiss Clone 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|
Engine: Rolex Calibre 7750. ETA 7750 3200-task movement This is a highly precise timepiece with a powerful ability to accurately display time and date information, as well as timing functions.
Crystal: Sapphire Crystal. A watch made of sapphire crystal is a lustrous and transparent crystal, which is often used in high-precision optical instruments.
Dial Markers: Diamonds. The watch has a diamond because the dial markers are used as dial markers instead of the usual Roman numerals to indicate the time.
Band Material: 316L. The raw material of this watch is the hardest 316L, which is suitable for daily seawater corrosion. This steel is completely sufficient.
Luminiscence: Hands. The watch’s luminiscence is hands. It helps you know the according time when in dark.
Power Reserve: 40 Hours. About the watch’s power reserve time, it has 40 hours of power reserve that is long lasting and tolerable.
Bezel Material: Stainless Steel. The watch bezel is the most expensive component of the watch. It is made of stainless steel bezel material. It needs to be durable and can resist abrasion. The design of stainless steel bezel material makes it suitable for the watch bezel because of its ability to withstand a lot of pressure and friction.
Second Markers: Minute Markers around the outer rim. The minute mark on the outer edge of the glass is a design element that represents time, also called a clock hand. This design element has been used in many famous designs such as watches, clocks and other objects.
Watch Case: 316L. The case is made of 316L steel, which is a very strong and corrosion-resistant steel. It has the same strength as the most popular grades (HRC52, HRC55), but only half the weight. Compared with competitors, the production cost of stainless steel is also higher.
Case Back: Solid. The sturdy back cover can transmit vibrations better than the back of the plastic case.