|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|
|Band Width||Around 16mm|
|Case Size||Around 48*40mm|
Case Back: Transparent. The transparent back cover can be used for many years. The backs of these watches are clear to see and can be used for many years.
Crystal: Sapphire Crystal. Sapphire crystal is a very common glass that can protect your watch from scratches. 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 fits your watch’s dial well.
Second Markers: Minute Markers around the outer rim. The design of other marks in watches, also known as clock hands, this design element has been used in many well-known designs.
Dial Markers: Diamonds. The diamond on the watch indicates the current time.
Bezel Material: Diamond Bezel. The watch uses a luxury diamond bezel, which 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. Deployment clasps are used in the watch allows the user to fold it into several positions or angles for unique use.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters, which is like a real watch. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.