|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 Back: Transparent. xxxxx usually uses a transparent back, 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. For watches, crystal is a very important part. Sapphire has higher impact resistance, air tightness and hardness than other materials, and its processing cost is also high, so most of it is used for top watch brands. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. For the watch, the hands is silver-tone. It fits your watch dial perfectly.
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 watch has an dot as a dial mark to indicate the current time.
Luminiscence: Hands and Markers. The watch’s luminiscence is hands and markers. With this watch, you will not lose your time in dark.
Clasp: Deployment. This watch use a deployment clasp which has a unique design that creates a secure clasp, which can be opened and closed with ease.
Water Resistance: 30 meters. Want a watch waterproof? Don’t hesitate to choose us, the depth of the watch is 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.