|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 Thickness||Around 15mm|
|Band Width||Around 16mm|
|Band Length||Around 18cm|
Case Back: Transparent. In the world of watches, a transparent back cover is very common. It can transmit your taste for watch better than the solid back cover of a watch.
Crystal: Sapphire Crystal. Sapphire glass has a special anti-reflective coating that minimizes light reflection and provides scratch resistance without affecting its brightness. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. Regarding this watch, hand design is silver-tone, which can highly improve the outlook of the watch.
Second Markers: Minute Markers around the outer rim. The design of other signs in the watch is also called the hand of the clock. This design element is used in many well-known designs.
Dial Markers: Dot. The dot on the dial are used as markers instead of Roman numerals to indicate time.
Luminiscence: Hands and Markers. The luminosity of the watch is hands and markers. The luminous things makes you find the time in dark.
Clasp: Deployment. This watch case has a designed lock which is more durable and stylish.
Water Resistance: 30 meters. The watch we use a waterproof at 30 meters, which is fully enough for your daily life. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.