|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 Size||Around 50*40mm|
|Case Thickness||Around 15mm|
Case Back: Transparent. In the world of watches, a transparent back cover is very common. It can transmit your taste for watch better than the solid back cover of a watch.
Crystal: Sapphire Crystal. For watches, crystal is a very important component, sapphire is high-end, and has a good reputation. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. The design of the watch’s hands is silver-tone. It blends perfectly with the dial.
Second Markers: Minute Markers around the outer rim. The design of the other marks in the watch is that the second mark is a small disc, placed on the outside of the clock to indicate the time.
Dial Markers: Arabic Numeral. We can use an arabic numeraled watch to indicate the current time.
Luminiscence: Hands. The luminosity of the watch is hands. With this watch, you will lose your time in dark.
Clasp: Deployment. This watch use a deployment clasp to make it easier and faster for the user to open and fold the watch case to keep it secure.
Water Resistance: 30 meters. The waterproof depth of the watch 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.
Function: Date, Hour, Minute, Second. A watch is a very important device in everyone’s life. The watch has a indicate date to measure time, the minute dial is used to estimate the current time, and the stop dial is used to estimate the time after an interval.