|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 Size||Around 45mm|
|Case Thickness||Around 16mm|
Case Back: Transparent. The transparent back cover 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. The design of crystal is that sapphire has higher impact resistance, air tightness and hardness than other materials, and the processing cost is also high, so it is mostly used in top watch brands. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. For the watch, we apply with hands of silver-tone, which fits your watch’s dial well.
Second Markers: Minute Markers around the outer rim. The dial design can be used in many different applications, such as watches, clock radios, etc.to create timeless works.
Dial Markers: Dot. With a dot are used as a markers to indicate what time it is.
Luminiscence: Hands and Markers. For the watch, the luminiscence is hands and markers. It helps you know the according time when in dark.
Bezel Material: Diamond Bezel. A diamond bezel made of diamond material. It needs to be durable and can resist abrasion. The design of diamond material makes it suitable for the watch bezel because of its ability to withstand a lot of pressure and friction. Tips: not real diamond.
Clasp: Deployment. This is a great way to protect and store your watch, which has a unique design that creates a secure clasp, which can be opened and closed with ease.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters, full 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.