|Grade||Genuine Rolex||3a Swiss||Swiss||Automatic|
|Movement||Rolex Calibre 4130||Genuine Swiss 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/Mingzhu Engine|
|Dial Color||Blue Dial|
Clasp: Fold Over Clasp. The clasp of the watch which is more durable and stylish.
Case Back: Solid. The solid bottom cover is not soft or inflexible in any respect. It is made of steel, very durable and scratch-resistant.
Crystal: Sapphire Crystal. Sapphire crystal is a high-end sapphire with a good reputation. Tips: The watch is applied with mineral glass instead of sapphire.
Water Resistance: 30 meters. About the watreproof depth of the watch, it is 30 meters. But please make sure you close the crown properly. Tips: The watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.
Band Material: 316L. The situation is 316L stainless steel, which has very good corrosion resistance and good texture.
Watch Case: 316L. The case is the most important part of the watch. 316L can be polished, frosted, and can be plated with various materials. It has stable performance and is the best choice for the case.
Luminiscence: Hands and Markers. The luminiscence of the watch is hands and markers. It makes your watch look more funny and functional.
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. It is also called the hand of a clock. This design element is used in many wells.
Hand: Silver-tone. About the hand design of the watch is silver-tone, which looks pretty stunning and high-end.
3a Swiss, 5a Swiss, Automatic, Swiss, Top Swiss