|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||Transparent Dial|
|Case Size||Around 50*40mm|
Case Back: Transparent. We use a transparent back, which is the most common part of the watch. It is simple, durable and easy to see engine inside.
Crystal: Sapphire Crystal. The hardness of the material of the watch is very high, the Mohs hardness is as high as 9, second only to diamond, and 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 you can see in the pictures above, the hand design of the watch is silver-tone that is cool and well-designed.
Second Markers: Minute Markers around the outer rim. The design of the dial is as shown in the picture above, with minute markers on the outer edge.
Dial Markers: Dot. According to a study, the human eye is sensitive to point, are used as markers instead of Roman numerals can impact the look of the dial.
Luminiscence: Hands. As for the watch’s luminiscence, it is hands. It helps you know the according time when in dark.
Bezel Material: Ceramics Bezel. The ceramic bezel is the prime material used for watch making. It has is one of the most beautiful and delicate parts in the watch. The ceramic bezel provides a durable, elegant and expensive look to the watch.
Clasp: Deployment. Deployment clasps are used here allows the user to fold it into several positions or angles for unique use.
Water Resistance: 30 meters. The watch’s waterproof depth 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.