|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 Back: Transparent. The case uses a transparent cover, which is neither soft nor flexible. It has excellent looking, can help you see movement inside.
Crystal: Sapphire Crystal. The crystal design allows people to feel a clear and bright vision when looking at the time. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Rose Gold-tone. For the watch, we apply with hands of rose gold-tone which is pretty cool and fashionable.
Second Markers: Minute Markers around the outer rim. The design of the second minute mark around the outer edge.
Dial Markers: Dot. The dot in a watch will indicate time for us.
Luminiscence: Hands. The style of the watch’s luminiscence is hands. It can help you know the corresponding time in the dark.
Clasp: Deployment. The innovative design of this watch which makes it more convenient for you to wear the watch, and the appearance is more beautiful.
Water Resistance: 30 meters. The watch’s waterproof depth is 30 meters, which is definitely 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.