|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 Back: Transparent. xxxxx usually uses a transparent back, which is more waterproof than a through-bottom one.
Crystal: Sapphire Crystal. Sapphire crystal is a good choice because it is a high-end sapphire with a good reputation. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Rose Gold-tone. For the watch, the hands is rose gold-tone, which is delicated and cool.
Second Markers: Minute Markers around the outer rim. The second mark on the watch can be used in various applications, such as clocks and radios with clocks, to create timeless creations.
Dial Markers: Dot. The dot in a watch to determine time by looking at the dot, which is different from normal dial.
Luminiscence: Hands. About the luminosity of the watch is hands. Something that shines allows you to find time in the dark.
Clasp: Deployment. The innovative design of this watch allows the user to fold it into several positions or angles for unique use.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters that’s enough for no worries. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.