|Grade||Genuine Richard Mille||3a swis||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||Black Skull Dial|
|Case Size||Around 50*43mm|
|Case Thickness||Around 15mm|
|Band Length||Around 18cm|
Case Back: Transparent. The case uses a thickened transparent back cover, which can better show your high taste and knowledge for watch.
Crystal: Sapphire Crystal. Sapphire crystal is a good choice because it is a natural material that can reflect light to create an illusion. Its long-lasting anti-reflective coating makes it ideal for scratch resistance, and the brightness of the crystal remains almost unchanged. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. The design of the watch’s hands is silver-tone, which is the same color as your case color. It fits the watch well.
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. The dot in a watch can will indicate time for us.
Luminiscence: Hands and Markers. The luminiscence of the watch is hands and markers. It can help you know the corresponding time in the dark.
Clasp: Deployment. This watch case has a designed lock which allows the user to fold it over in multiple positions or angles for unique use.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters, which is like a real watch. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.