|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|
Watch Case: 316L. The case is made of the best 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. In the world of watches, a transparent back cover is very common to make the watch more durable.
Crystal: Sapphire Crystal. We use sapphire crystal for the watch, which is a special anti-reflective coating that minimizes light reflection and provides scratch resistance without affecting its brightness. Sapphire crystal is a highly transparent crystal that can be used to make optical lenses, diffractive optical elements, and filters. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. The style of the watch’s hands is silver-tone. It blends perfectly with the dial.
Second Markers: Minute Markers around the outer rim. The second mark on the dial is also called the hand, and this design element has been used in many famous designs.
Dial Markers: Arabic Numeral. According to a study, the human eye is sensitive to number, unlike a regular dial, the watch uses a few simple arabic numerals to mark the dial to indicate the current time.
Luminiscence: Hands. The style of the watch’s luminiscence is hands. It helps you know the according time when in dark.
Bezel Material: Diamond Bezel. A diamond bezel is an elegant material that can be used for dials and watch faces. It’s extremely resistant and flexible. Learn to design a gorgeous hand-made diamond bezel and how one can use it to create a luxury watch. Tips: not real diamond.
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. As for the waterproof depth of the watch, it is 30 meters. But please make sure you close the crown properly. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.