|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|
|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 Back: Solid. The solid bottom cover is solemn, practical, not flashy, does not follow the trend, and stabilizes the position.
Bezel Material: Stainless Steel. The stainless steel bezel material is one of the best materials for watches. It is one of the most beautiful and delicate parts in the watch. The stainless steel bezel provides a durable, endurable and expensive look to the watch.
Dial Markers: Diamonds. Diamond dial markers replace Roman numerals to show us the time.
Water Resistance: 30 meters. About the watreproof depth of the watch, it is 30 meters. But make sure to close the crown properly. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.
Crystal: Sapphire Crystal. We use sapphire crystal in our watches. Sapphire has higher impact resistance, air tightness and hardness than other materials, and the processing cost is also high, so most of it is used for top watch brands. Tips: The A watch is applied with mineral glass instead of sapphire.
Second Markers: Minute Markers around the outer rim. The minute mark on the outer circle is a design element that represents time. It is a small round dial placed on the outside of the watch to indicate the time.
Watch Case: 316L. A good case can better protect your watch. It is made of 316L stainless steel, which has very good corrosion resistance and good texture.
Band Material: Leather.A lasting leather band is used in this watch, which the most popular strap for high-end watches.