|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|
|Case Size||Around 50*42mm|
|Band Width||Around 16mm|
Case Back: Solid. The case uses a thickened solid back cover, and the screw-in design ensures tight waterproof performance. The solid back cover has excellent waterproof performance and durability.
Crystal: Sapphire Crystal. Sapphire crystal is a good choice because it is a special anti-reflective coating that can minimize light reflection and provide scratch resistance without affecting its brightness. Sapphire crystal is a highly transparent crystal that can be used to make optical lenses, diffractive optical elements, and filters. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. As you can see in the pictures above, the hand design of the watch is silver-tone. It fits your watch dial perfectly.
Second Markers: Minute Markers around the outer rim. The second mark on the dial is also called the hand of the clock. This design element is used in many famous designs.
Dial Markers: Dot. dots were used in this watch will indicate time for us.
Luminiscence: Hands and Markers. The design of the watch’s luminiscence is hands and markers. It makes your watch look more funny and functional.
Clasp: Deployment. Deployment clasps are used in the watch to make it easier and quicker for the user to open and fold the case over to keep it secure.
Water Resistance: 30 meters. The watch we use a waterproof at 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.