|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|
Water Resistance: 100 meters. As for the waterproof depth of the watch, it is 100 meters. But make sure to close the crown properly.(The ordinary Automatic movement is just daily waterproof, need to purchase additional waterproof service which is up to 100 meters.)
Band Material: 316L. The material in this example comes from 316L stainless steel, which is a medium-to-high-grade shell material. Because it contains molybdenum, it is more corrosion-resistant than 304, and the grade is also higher.
Case Back: Solid. We are using a solid bottom cover, which is more waterproof than transparent. A waterproof sealing ring is added to the through-bottom watch, which makes it difficult to seal.
Luminiscence: Hands and Markers. About the luminosity of the watch is hands and markers. With this watch, you will not lose your time in dark.
Crystal: Sapphire Crystal. The sapphire crystal glass adopts a special anti-reflective coating to minimize light reflection and provide scratch resistance without affecting its brilliance. Sapphire crystal is a highly transparent crystal that can be used to make optical lenses, diffractive optical elements, and filters.
Engine: Rolex 7750 movement. The ETA 7750 3200-task Swiss movement is the most reliable timing mechanism in the world. Because a larger ball bearing base plate means better support and better vibration resistance of the pendulum.
Power Reserve: 40 Hours. As for the power reserve, we apply with 40 hours power reserve and 28800 fluctuations, which is pretty good.
Watch Case: 316L. This case uses the best 316L stainless steel, which is a highly durable and corrosion-resistant material.
Dial Markers: Index. The index in a watch can unlike the normal dial, the watch uses some simple indexs as dial markers to show us what time it is.
Second Markers: Minute Markers around the outer rim. The second mark on the watch is also called the hand, this design element has been used in many famous designs.
Hands: Gold-Tone. The design of the watch’s hands is gold-tone. It blends perfectly with the dial.