|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|
Band Material: Rubber.The xxx watch apply with a rubber strap has excellent properties in preventing sweat and moisture, and has no allergic reaction to the skin.
Watch Case: 316L. 316L is used as a case for daily seawater corrosion, and 316L steel is sufficient.
Case Back: Solid. We use a sturdy bottom cover, which allows you to use and keep the watch for a long time.
Crystal: Sapphire Crystal. The watch adopts sapphire crystal, which is easy to watch and brings a brand new visual effect to people watching the time. Tips: The watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. The design of the watch’s hands is silver-tone, which is delicated and cool.
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. The second mark is a small disc placed on the outside of the watch to indicate the time.
Dial Markers: Luminous Index. The luminous sticks on the watch allows you to see the time even in the absence of light and at night.
Luminiscence: Hands and Markers. For the watch, the luminiscence is hands and markers. It makes your watch look more high-end.
Bezel Material: Ceramics Bezel. The bezel, made of ceramic, is more noble and elegant. It makes you improve your taste from the inside out.
Clasp: Deployment. We use a deployment clasp for the watch to make it easier and faster for the user to open and fold the watch case to keep it secure.
Water Resistance: 30 meters. We make the watch waterproof at 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.
3a Swiss, 5a Swiss, Automatic, Swiss, Top Swiss