|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|
|Dial Color||Black Dial|
|Engine||Rolex Calibre 7750/Mingzhu Engine|
Bezel Material: Stainless Steel. The watch uses a high-end stainless steel bezel, which is a different way to look at watches. The design of the bezel brings a new level of quality and sophistication to the watch. This material allows for a more fused look and enhances the usability of the timepiece.
Band Material: 316L. The band is made of solid 316L, the density of which is close to iron, and generally does not affect the human body. This material is often used in the straps of Swiss watches.
Second Markers: Minute Markers around the outer rim. The design of the dial is also known as the hands of the clock, and many well-known designs use this design element.
Watch Case: 316L. The material in this case comes from 316L, which is a high-grade stainless steel alloy. It is corrosion resistant, easy to weld, durable and safe to use.
Dial Markers: Diamonds. Unlike ordinary dials, watches use some simple diamonds as dial markers, and watches use some simple diamonds as dial markers to show us the current time.
Crystal: Sapphire Crystal. The crystal design 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 watch is applied with mineral glass instead of sapphire.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters, which is definitely enough for your daily life. Tips: The watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.
Hands: Gold-tone. Regarding this watch, hand design is gold-tone. It fits your watch dial perfectly.
Case Back: Solid. The hard solid bottom cover allows you to use and keep the watch longer.
3a Swiss, 5a Swiss, Automatic, Swiss, Top Swiss