|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. Our watch band is 316L stainless steel, which is a medium-to-high-end band material. Because it contains molybdenum, it is more corrosion-resistant than 304 and is of high-grade.
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.
Hand: Silver-tone. The design of the watch’s hands is silver-tone. It blends perfectly with the dial.
Crystal: Sapphire Crystal. Sapphire crystal is a good choice, because it can block moisture and dust, protect the hands, dial and movement. Tips: The A watch is applied with mineral glass instead of sapphire.
Watch Case: 316L. 316L is used as a watch case that is corroded by daily seawater.
Clasp: Fold Over Clasp. Our watch uses a folding buckle, which is more durable and stylish.
Dial Markers: Luminous Index. According to research, human eyes are sensitive to light at night and tell you the time in the dark. The light from the watch shines through the lens, allowing us to clearly see the time.
Second Markers: Minute Markers around the outer rim. The minute mark surrounding the outer edge of the glass is a design element that represents time and is located on the outside of the clock to indicate the time.
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.
Luminiscence: Hands and Markers. Regarding this watch, luminescence is hands and markers. It helps you know the according time when in dark.