|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|
|Band Width||Around 16mm|
|Case Thickness||Around 15mm|
Case Back: Transparent. The transparent back cover is the most common part of the watch. It is simple, durable and easy to see engine inside.
Crystal: Sapphire Crystal. The crystal design is a kind of lustrous and transparent crystal, which is often used in high-precision optical instruments. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. The hands of the watch is silver-tone that is cool and well-designed.
Second Markers: Minute Markers around the outer rim. The design of the dial is also called a clock hand. This design element has been used in many well-known designs such as watches and other items.
Dial Markers: Dot. The dot dial mark tells us what time it is, which is different from a normal dial.
Luminiscence: Hands and Markers. Regarding this watch, luminescence is hands and markers. It can help you know the corresponding time when you running in dark.
Clasp: Deployment. This watch use a deployment clasp which is more durable and stylish.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters, full 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.