|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: Leather.A lasting leather band is used in this watch, which is comfortable and soft, and not easy to cause allergies.
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 sturdy case back is not soft or flexible in any way. It is made of steel, very durable and scratch-resistant.
Crystal: Sapphire Crystal. For watches, crystal is a very important component, sapphire is high-end, and has a good reputation. Tips: The A watch is applied with mineral glass instead of sapphire.
Hands: Gold-tone. The hands of the watch is gold-tone, which fits your watch’s dial well.
Second Markers: Minute Markers around the outer rim. The design of the second hand in the watch is as shown in the picture above. It is also called the hand of a clock. This design element is used in many famous designs, such as clocks and other objects.
Dial Markers: Diamonds. According to a study, the human eye is very sensitive to points. We use diamonds to determine the time by observing diamonds, which is different from ordinary dials.
Luminiscence: Hands. The luminiscence of the watch is hands. It can help you know the corresponding time in the dark.
Bezel Material: Stainless Steel. The stainless steel bezel is the prime material used for watch making. It has is more simple and endurable. It makes you improve your taste from the inside out.
Clasp: Deployment. This watch case has a designed lock which is more durable and stylish.
Water Resistance: 30 meters. The watch we use a waterproof at 30 meters, full 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.