|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|
|Dial Color||Transparent Dial|
Case Back: Transparent. xxxxx usually uses a transparent back, which can transmit impact better than the plastic back cover of a watch.
Crystal: Sapphire Crystal. The sapphire crystal mirror has a special anti-reflective coating to minimize light reflection and provide scratch resistance without affecting its brightness. Sapphire crystal is a highly transparent crystal that can be used to make optical lenses, diffractive optical elements, and filters. 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 which is pretty cool and fashionable.
Second Markers: Minute Markers around the outer rim. The second mark on the dial is located on the outside of the clock and is used to indicate the time.
Dial Markers: Dot. dots were used in this watch are used as dial markers instead of usual Roman numerals to indicate the time.
Luminiscence: Hands. Regarding this watch, luminescence is hands. It helps you know the according time when in dark.
Bezel Material: Ceramics Bezel. A luxury watch with a ceramic bezel is an elegant material that can be used for dials and watch faces. It’s extremely resistant and flexible. Learn to design a gorgeous hand-made ceramic bezel and how one can use it to create a luxury watch.
Clasp: Deployment. The clasp of the watch which makes it more convenient for you to wear the watch, and the appearance is more beautiful.
Water Resistance: 30 meters. About the watreproof depth of the watch, it is 30 meters, which has a good waterproof function. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.