|Grade||Genuine Hublot||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||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|
|Dial Color||Black Skeleton Dial|
Watch Case: 316L. The case is made of 316L stainless steel, which has excellent corrosion resistance. The case is also hypoallergenic and scratch-resistant. It can withstand high temperature environments and provide shock protection.
Case Back: Transparent. The hard transparent back cover allows you to use and keep the watch longer.
Crystal: Sapphire Crystal. Sapphire crystal is the best choice for most people. Its hardness is very high, with Mohs hardness as high as 9, second only to diamond. Its hardness is almost 3 times that of mineral glass and 20 times that of acrylic mirrors. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. For the watch, we apply with hands of silver-tone that is simple but luxury.
Second Markers: Minute Markers around the outer rim. The design of the second minute mark around the outer edge.
Dial Markers: Arabic Numeral. Arabic numeral dial markers are used as markers instead of dots, and will affect the appearance of the dial.
Luminiscence: Hands. As you can see in the pictures above, the luminescence of the watch is hands. The luminous things makes you find the time in dark.
Bezel Material: Diamond Bezel. The diamond bezel is the prime material used for watch making. It has has been around since ancient times. It has been used as a decorative material for watches and clocks for more than two thousand years. A watch face made from diamond materials can withstand extreme temperatures. Tips: not real diamond.
Clasp: Deployment. This watch use a deployment clasp which is more convenient for disassembly and replacement, and also ensures the quality and comfort of the strap.
Water Resistance: 30 meters. The watch’s waterproof depth is 30 meters, which is like a real watch. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.