|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|
|Case Thickness||Around 16mm|
|Band Width||Around 16mm|
|Case Size||Around 43mm|
Case Back: Transparent. The case has a transparent cover, which is a great way to add a sense of fashion and elegance to your wrist. High-end clear back watches are becoming more and more popular.
Crystal: Sapphire Crystal. Sapphire crystal is the best choice for most people. Its hardness is very high, with Mohs hardness as high as 9, second only to diamond. Its hardness is almost 3 times that of mineral glass and 20 times that of acrylic mirrors. 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 that is cool and well-designed.
Second Markers: Minute Markers around the outer rim. The minute mark around the outer edge of the glass is one of the most recognized design elements in all industries, also known as clock hands. This design element is used in many well-known designs.
Dial Markers: Dot. The watch has an dot because the dial markings will indicate the time for us.
Luminiscence: Hands and Markers. As for the watch’s luminiscence, it is hands and markers. The luminous things makes you find the time in dark.
Bezel Material: Diamond Bezel. The watch uses a high-end diamond bezel, which has high dimensional stability, high resilience and UV resistance. It can be used in both hard and soft cases. It’s also resistant to water, heat and deliquescent substances like oil or food. Tips: not real diamond.
Clasp: Deployment. Deployment clasps are used in the watch to make it easier and faster for the user to open and fold the watch case to keep it secure.
Water Resistance: 30 meters. The waterproof depth of the watch is 30 meters, which is a good feature for the watch. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.