|Grade||Genuine Hublot||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||90% Exact on entire watch||70% Exact on entire watch|
|Dial||Genuine Hublot||Exact detail and font||90% exact detail and font||70% Exact detail and font|
|Waterproof||100m 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|
Watch Case: 316L. The raw material of this watch is the hardest 316L, one of the most heat-resistant stainless steel grades. Its corrosion resistance is very good, even at temperatures as high as 1100*F, without any further heat treatment.
Case Back: Transparent. The transparent back cover is not soft or flexible in any way. It helps you see the engine inside clearly.
Crystal: Sapphire Crystal. Sapphire crystal is a high-end sapphire with 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 that is simple but luxury.
Dial Markers: Diamonds. According to a study, the human eye is very sensitive to points. Unlike ordinary dials, watches use some simple diamonds as dial markers to show us the time.
Luminiscence: Hands. For the watch, we apply with luminiscence of hands. Something that shines allows you to find time in the dark.
Bezel Material: Diamond Bezel. Diamond Bezel is a material that is more noble and elegant. It makes you improve your temperament from the inside out. Tips: not real diamond.
Clasp: Deployment. This watch use a deployment 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. A good waterproof of the watch has been applied, it is 30 meters, which is definitely enough for your daily life. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.