|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|
Case Back: Transparent. We use a transparent back cover that 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. Sapphire glass is a very common glass that can protect your watch from scratches. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. The style of the watch’s hands is silver-tone, which is delicated and cool.
Second Markers: Minute Markers around the outer rim. The design of the second marker is a small round dial, placed on the outside of the watch to indicate the time.
Dial Markers: Dot. The dot in a watch can will indicate time for us.
Luminiscence: Hands and Markers. Regarding this watch, luminescence is hands and markers. The luminous things makes your watch more delicate and high-end.
Clasp: Deployment. This watch case has a designed clasp which allows the user to fold it over in multiple positions or angles for unique use.
Water Resistance: 30 meters. About the watreproof depth of the watch, it 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.