|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*42mm|
|Band Length||Around 18cm|
Case Back: Transparent. The case uses a thickened transparent back cover, and the screw-in design ensures tight waterproof performance. The transparent back cover also has good waterproof performance and durability.
Crystal: Sapphire Crystal. Sapphire crystal is the best choice for most people. Sapphire’s impact resistance, air tightness and hardness are higher than other materials, and the processing cost is higher, so it is mostly used for top watch brands. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. As for the watch’s hands, it is silver-tone, which looks pretty stunning and high-end.
Second Markers: Minute Markers around the outer rim. The design of the second mark is also called the watch hand, this design element has been used in many famous designs.
Dial Markers: Dot. The dot in a watch can unlike the normal dial, the watch uses some simple dots as dial markers to show us what time it is.
Luminiscence: Hands and Markers. About the watch, the luminiscence is hands and markers. With this watch, you will not waste time to check the real-time.
Clasp: Deployment. The clasp design of the watch 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 that is enough for no worries. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.