|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 Length||Around 18cm|
|Case Thickness||Around 15mm|
|Case Size||Around 50*43mm|
|Dial Color||Black Skull Dial|
Band Material: Rubber.A high-end watch with a rubber strap is non-toxic, resistant to high and low temperatures, acid and alkali, flexible, and easy to maintain.
Crystal: Sapphire Crystal. Sapphire glass has a unique optical material. It is not only dazzling, but also scratch-resistant. The color rendering index (CRI) of the anti-reflective coating is 100, and the brightness is increased by up to 50%. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. As for the watch’s hands, it is silver-tone. It fits your watch dial perfectly.
Second Markers: Minute Markers around the outer rim. The minute mark around the outer edge of the glass is one of the most recognized design elements in all industries. The second mark is a small disc placed on the outside of the watch to indicate the time.
Dial Markers: Dot. A watch is a timepiece that displays the time in an analog form, are used as markers instead of Roman numerals can impact the look of the 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. Our this watch uses a deployment clasp which allows the user to fold it over in multiple positions or angles for unique use.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it 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.