|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|
|Dial Color||Mars Earth Dial|
|Band Width||Around 16mm|
Case Back: Transparent. The transparent back cover can transmit a high taste and good looking than solid back.
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: Rose Gold-tone. As you can see in the pictures above, the hand design of the watch is rose gold-tone, which looks pretty stunning and high-end.
Second Markers: Minute Markers around the outer rim. The design of the second mark is also called the watch hand, this design element has been used in many famous designs.
Dial Markers: Dot. dot dial markers use dots as dial markers to indicate the time.
Luminiscence: Hands and Markers. About the watch, the luminiscence is hands and markers. It can help you know the corresponding time when you running in dark.
Clasp: Deployment. This watch case has a designed clasp to make it easier and quicker for the user to open and fold the case over to keep it secure.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 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.