|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 Length||Around 18cm|
|Dial Color||Diamonds Dial|
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. For watches, crystal is a very important part and a unique optical material. It is not only dazzling, but also scratch-resistant. The color rendering index (CRI) of the anti-reflective coating is 100, and the brightness is increased by up to 50%. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. Regarding this watch, hand design is silver-tone, that makes your watch luxury and funny.
Second Markers: Minute Markers around the outer rim. The design of the second mark is also called a clock hand. This design element has been used in many famous designs such as watches and other items.
Dial Markers: Dot. According to a study, the human eye is sensitive to point, are used as markers instead of Roman numerals to indicate time.
Luminiscence: Hands. The design of the watch’s luminiscence is hands. The luminous things makes you find the time in dark.
Clasp: Deployment. The clasp design of the watch which is more durable and stylish.
Water Resistance: 30 meters. The watch we use a waterproof at 30 meters. But make sure to close the crown properly. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.