|Grade||Genuine Rolex||3a swiss||swiss||automatic|
|Movement||Rolex Calibre 4130||Genuine Swiss4130 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|
|Case Color||Yellow Gold-tone|
|Dial Color||Black Dial|
Band Material: 316L. This band uses the best 316L, you can always live in peace with your skin without causing harm.
Watch Case: 316L. The raw material of this watch is the hardest 316L steel, which is a very strong and corrosion-resistant steel. It has the same strength as the most popular grades (HRC52, HRC55), but only half the weight. Compared with competitors, the production cost of stainless steel is also higher.
Case Back: Solid. The solid bottom cover will have better water resistance than the through bottom. A waterproof sealing ring is added to the through-bottom watch, which makes it difficult to seal.
Crystal: Sapphire Crystal. A good sapphire mirror is a special anti-reflective coating that can minimize light reflection and provide scratch resistance without affecting its brightness. Tips: The A watch is applied with mineral glass instead of sapphire.
Hands: Gold-tone. About the watch, the hands is gold-tone, which is the perfect color to fit the watch.
Dial Markers: Index. Indexs were used in this watch to determine time by looking at the index, which is different from normal dial.
Luminiscence: Hands and Markers. The design of the watch’s luminiscence is hands and markers. It can help you know the corresponding time when you running in dark.
Bezel Material: Stainless Steel. Bezel material made of stainless steel bezel material. It needs to be durable and can resist abrasion. The design of stainless steel bezel material makes it suitable for the watch bezel because of its ability to withstand a lot of pressure and friction.
Clasp: Fold Over Clasp. This watch case has a designed lock which is more convenient for disassembly and replacement, and also ensures the quality and comfort of the strap.
Water Resistance: 30 meters. About the watreproof depth of the watch, it is 30 meters that is enough for no worries. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.