|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|
Second Markers: Minute Markers around the outer rim. The minute mark around the outer edge of the glass is one of the most recognized design elements in all industries and is located on the outside of the clock to indicate the time.
Watch Case: 316L. The case is 316L. For daily seawater corrosion, 316L steel is completely sufficient.
Luminiscence: Hands. For the watch, we apply with luminiscence of hands. The luminous things makes you find the time in dark.
Case Back: Solid. xxx usually uses a solid bottom cover, which is a great way to add style and elegance to your wrist. Scratch-resistant and wear-resistant watches are becoming more and more popular.
Water Resistance: 30 meters. The watch we use a waterproof at 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.
Dial Markers: Arabic Numeral. Arabic numerals will indicate time for us quickly.
Bezel Material: Stainless Steel. The stainless steel bezel material is one of the best materials for watches. It is an endurable material that can be used for dials and watch faces. It’s extremely resistant and flexible. Learn to design a gorgeous hand-made stainless steel bezel and how one can use it to create a luxury watch.
Crystal: Sapphire Crystal. The design of crystal is a high-quality optical material that is often used in the construction of watches. The unique anti-reflective coating can provide scratch resistance without affecting its gloss. Tips: The watch is applied with mineral glass instead of sapphire.
Hands: Gold-tone. The style of the watch’s hands is gold-tone, which fits your watch’s dial well.
3a Swiss, 5a Swiss, Automatic, Swiss, Top Swiss