|Grade||Genuine Patek Philippe||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 Patek Philippe||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|
Band Material: Leather.As you can see, many leather bands are used in xxx watches, which the most popular strap for high-end watches.
Watch Case: 316L. This case uses the best 316L, which is a durable metal with light weight and high strength. It is corrosion resistant, non-magnetic and highly polished.
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 watch is applied with mineral glass instead of sapphire.
Dial Markers: Roman Numeral. The Roman numeral in a watch can help us check the time anytime, anywhere.
Bezel Material: Stainless Steel. The stainless steel bezel material is one of the best materials for watches. It made of stainless steel bezel material. It needs to be durable and can resist abrasion. The design of stainless steel bezel material makes it suitable for the watch bezel because of its ability to withstand a lot of pressure and friction.
Clasp: Deployment. Deployment clasps are used here which makes it more convenient for you to wear the watch, and the appearance is more beautiful.
Water Resistance: 30 meters. The watch’s waterproof depth is 30 meters, which is a good feature for the watch. Tips: The watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.
Function: Date, Hour, Minute, Second. The watch comes with a functional timer, and is also equipped with a second hand, a minute hand and an hour hand.