|Grade||Genuine Richard Mille||3a swiss||swiss||automatic|
|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||Sapphire crystal||Mineral Glass|
|Logo & Markings||laser etchings||Exact on entire watch||95% Exact on entire watch||90% Exact on entire watch|
|Dial||Genuine Richard Mille||Exact detail and font||95% exact detail and font||90% Exact detail and font|
|Waterproof||50m 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|
|Dial Color||Black With Diamonds Dial|
|Case Size||Around 45*38mm|
Case Back: Transparent. We use a transparent back cover, which is not soft or flexible in any way. It helps you see the engine inside clearly.
Crystal: Sapphire Crystal. Sapphire crystal watches are sapphires, high-end, and good reputation. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. As for the watch’s hands, it is silver-tone, which looks pretty stunning and high-end.
Dial Markers: Dot. With a dot are used as markers instead of Roman numerals can impact the look of the dial.
Bezel Material: Diamond Bezel. A luxury watch with a diamond bezel is a high-end material made from diamond. It is the most expensive material of the watch. In addition, diamond is a substance with high flexibility and energy absorption properties which can be used as the core medium of the watch. Tips: not real diamond.
Clasp: Deployment. The combination of a watch case and a bracelet watch is a great way to protect and store your watch. It has a unique design that creates a secure lock, which can be easily opened and closed.
Water Resistance: 30 meters. The watch’s waterproof depth is 30 meters. But please make sure you close the crown properly. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.