|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||Mars Earth Dial|
Case Back: Transparent. The case uses a transparent cover, which can be used for many years. The backs of these watches are clear to see and can be used for many years.
Crystal: Sapphire Crystal. Sapphire crystal is the best choice for most people. It is a lustrous and transparent crystal that is often used in high-precision optical instruments. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Rose Gold-tone. For the watch, we apply with hands of rose gold-tone, which is delicated and cool.
Second Markers: Minute Markers around the outer rim. The small mark on the outer edge of the glass edge is one of the most recognized design elements in all industries. It is also called the hand of a clock. This design element is used in many famous designs such as clocks and other objects.
Dial Markers: Dot. The dot in a watch to indicate what time it is.
Luminiscence: Hands and Markers. For the watch, the luminiscence is hands and markers. These luminiscence makes your watch more refined and high-end.
Clasp: Deployment. The combination of a watch case and a bracelet 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 watch we use a waterproof at 30 meters. But please make sure you close the crown properly. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.