|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 Thickness||Around 15mm|
Case Back: Solid. The case uses a thick solid back, which can be used for many years. There are many boxes made of various materials. These watch cases cannot prevent damage and are easily damaged. The backs of these watches are sturdy and can be used for many years.
Crystal: Sapphire Crystal. The sapphire crystal mirror is made of natural materials, which can reflect light to create an illusion. Its long-lasting anti-reflective coating makes it ideal for scratch resistance, and the brightness of the crystal remains almost unchanged. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. The style of the watch’s hands is silver-tone that is cool and well-designed.
Second Markers: Minute Markers around the outer rim. The design of other marks in the watch is also called the hand of the clock. This design element is used in many famous designs, such as clocks and other objects.
Dial Markers: Dot. The watch with dot are used as dial markers instead of usual Roman numerals to indicate the time.
Luminiscence: Hands and Markers. For the watch, the luminiscence is hands and markers. As you can see in the pictures above.
Bezel Material: Stainless Steel. The watch uses a high-end stainless steel bezel, which is more simple and endurable. It makes you improve your temperament from the inside out.
Clasp: Deployment. This watch case has a designed clasp to make it easier and quicker for the user to open and fold the case over to keep it secure.
Water Resistance: 30 meters. About the watch, the waterproof depth 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.