|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|
Case Back: Solid. The strong case back can make the watch more durable, and they can withstand harsh outdoor environments such as rain, snow, cold or hot weather.
Crystal: Sapphire Crystal. Sapphire crystal is the best choice for most people. It 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. About the watch, the hands is silver-tone that is cool and well-designed.
Second Markers: Minute Markers around the outer rim. The small mark on the outer edge of the glass edge is one of the most recognized design elements in all industries. It is called the hand of a clock. This design element is used in many famous designs such as clocks, clocks and other objects.
Dial Markers: Dot. With a dot are used as markers instead of Roman numerals can impact the look of the dial.
Luminiscence: Hands. As you can see in the pictures above, the luminescence of the watch is hands. It helps you know the according time when in dark.
Bezel Material: Stainless Steel. The watch bezel is the most expensive component of the watch. It is a unique structure that makes it an excellent choice for watches. The material can resist scratches, abrasions and indentation. This bezel material is the most resistant to heat and cold of all materials used in watchmaking.
Clasp: Deployment. This watch case has a designed clasp which is more convenient for disassembly and replacement, and also ensures the quality and comfort of the strap.
Water Resistance: 30 meters. A good waterproof of the watch has been applied, it is 30 meters, which is like a real watch. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.