|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|
|Dial Color||Transparent Dial|
Case Back: Transparent. In the watch world, a transparent back cover is very common. It can transmit your taste better than the back of a solid case.
Crystal: Sapphire Crystal. A good sapphire mirror has good thermal properties, excellent electrical and dielectric properties, and is resistant to chemical corrosion. It has the characteristics of high temperature resistance, good thermal conductivity, high hardness, infrared penetration, and good chemical stability. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. About the hand design of the watch is silver-tone that is simple but luxury.
Second Markers: Minute Markers around the outer rim. The minute mark on the outer edge around the edge of the glass is one of the most recognized design elements in all industries. It is a small round dial placed on the outside of the watch to indicate the time.
Dial Markers: Dot. dots were used in this watch unlike a regular dial, the watch uses a few simple dots to mark the dial to indicate the current time.
Luminiscence: Hands and Markers. The watch’s luminiscence is hands and markers. With this watch, you can know time anywhere and anytime.
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. The waterproof depth of the watch is 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.