|Grade||Genuine Patek Philippe||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 Patek Philippe||Exact detail and font||90% exact detail and font||70% Exact detail and font|
|Luminous Markers||Patek Philippe Lumen||SuperLuminova Swiss Lumen||Swiss Lumen||Normal Lumen|
|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: 316L. Our band is made of 316L stainless steel, which has the flexibility to form and maintain precise shapes. This makes it durable and can withstand extreme temperatures.
Second Markers: Minute Markers around the outer rim. The second mark on the minute mark around the outer edge of the dial.
Clasp: Fold Over Clasp. This watch case has a designed lock which is more convenient for disassembly and replacement, and also ensures the quality and comfort of the strap.
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.
Water Resistance: 30 meters. As for the waterproof depth of the watch, it is 30 meters, which is a good feature for the watch. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.
Case Back: Solid. The sturdy case back can make the watch more durable, and they can withstand harsh outdoor environments such as rain, snow, cold or hot weather.
Function: Date, Hour, Minute, Second. The watch is a very important appliance in everyone’s life, and the watch can be used to measure time and seconds accordingly.
Crystal: Mineral Glass. A good mineral glass mirror is a special anti-reflective coating that can minimize light reflection and provide scratch resistance without affecting its brightness. Mineral Glass is a highly transparent crystal that can be used to make optical lenses, diffractive optical elements, and filters.
Hand: Silver-tone. For the watch, the hands is silver-tone. It blends perfectly with the dial.
Watch Case: 316L. The material in this case comes from 316L, which is a high-grade stainless steel alloy. It is corrosion resistant, easy to weld, durable and safe to use.
Dial Markers: Index. According to a study, the human eye is sensitive to point, uses indexs as dial markers to indicate time.