|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 12mm|
Case Back: Transparent. The case uses a transparent cover, which is never soft or flexible. It helps you see the engine inside clearly.
Crystal: Sapphire Crystal. A good sapphire mirror is that sapphire has higher impact resistance, air tightness and hardness than other materials, and the processing cost is also high, so it is mostly used for top watch brands. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Rose Gold-tone. The hand design of the watch is rose gold-tone, which is the same color as your case color.
Second Markers: Minute Markers around the outer rim. The second mark on the watch is also called the hand, this design element has been used in many famous designs.
Dial Markers: Dot. dot dial markings are different from ordinary dials. The watch uses a few simple dots to mark the dial to indicate the current time.
Luminiscence: Hands and Markers. About the luminosity of the watch is hands and markers. It helps you know the according time when in dark.
Clasp: Deployment. The clasp design of the watch allows the user to fold it into several positions or angles for unique use.
Water Resistance: 30 meters. We make the watch waterproof at 30 meters, which is a good feature for the watch. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.