|Grade||Genuine Rolex||3a swiss||swiss||automatic|
|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|
|Engine||Rolex Calibre 7750/Mingzhu Engine|
Band Material: 316L. The material in this band comes from 316L stainless steel, which has excellent corrosion resistance. The band is also hypoallergenic and scratch-resistant. It can withstand high temperature environments and provide shock protection.
Watch Case: 316L. The watch case is made of 316L stainless steel, which is a medium-to-high-end shell material. Because it contains molybdenum, it is more wear-resistant than 304, and the grade is also high.
Case Back: Solid. The case uses a thick solid case back, and the screw-in design ensures tight waterproof performance. The solid back cover has superior waterproof performance and durability.
Crystal: Sapphire Crystal. Sapphire crystal has extremely high hardness, with Mohs hardness as high as 9, second only to diamond, and almost 3 times the hardness of mineral glass and 20 times that of acrylic mirrors. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. For the watch, the hands is silver-tone. It blends perfectly with the dial.
Second Markers: Minute Markers around the outer rim. The design of the dial is also called the hands of the clock. This design element is used in many well-known designs, such as clocks and other objects.
Dial Markers: Luminous Index. When you are not under light, the luminous sticks in the watch will light up.
Luminiscence: Hands and Markers. The design of the watch’s luminiscence is hands and markers. With this watch, you will not lose your time in dark.
Bezel Material: Stainless Steel. A luxury watch with a stainless steel bezel 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.
Clasp: Fold Over Clasp. A fold over clasp are used here which makes it more convenient for you to wear the watch, and the appearance is more beautiful.
Water Resistance: 30 meters. The watch’s waterproof depth is 30 meters, which is fully enough for your daily life. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.