|Grade||Genuine Richard Mille||3a swis||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 Back: Transparent. Patek Philippe usually uses a transparent back, which transmits a high taste and good looking than solid back.
Crystal: Sapphire Crystal. The crystal design is conducive to viewing and can bring a brand new visual effect when looking at the time. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. About the hand design of the watch is silver-tone that is cool and well-designed.
Second Markers: Minute Markers around the outer rim. The second marker is designed as shown in the picture above, with minute markers around the outer edge.
Dial Markers: Dot. A watch is a timepiece that displays the time in an analog form, 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. With this watch, you will not waste time to check the real-time.
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. About the watreproof 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.