|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|
|Band Width||Around 16mm|
|Band Length||Around 18cm|
|Case Color||Rose Gold-tone|
Case Back: Transparent. The case uses a thick transparent back cover, which is usually used to protect the watch movement from direct damage. These watch cases can also increase the durability and strength of the watch movement.
Crystal: Sapphire Crystal. Watches made of sapphire crystal have a very high hardness, with a Mohs hardness of 9, which is second only to diamonds. Its hardness is almost 3 times that of mineral glass and 20 times that of acrylic mirrors. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Rose Gold-tone. The watch’s hands is rose gold-tone. It blends perfectly with the dial.
Second Markers: Minute Markers around the outer rim. The small mark on the outer edge of the glass is one of the most recognized design elements in all industries, and the minute mark around the outer edge.
Dial Markers: Dot. The watch with dot are used as markers instead of Roman numerals to indicate time.
Luminiscence: Hands and Markers. As for the watch’s luminiscence, it is hands and markers. It can help you know the corresponding time when you running in dark.
Clasp: Deployment. Deployment clasps are used in the watch which is more convenient for disassembly and replacement, and also ensures the quality and comfort of the strap.
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.