|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|
|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|
|Dial Color||Grey Dial|
|Case Color||Rose Gold-tone|
Band Material: Leather.As you can see, many leather bands are used in watches, which the most popular strap for high-end watches.
Watch Case: 316L. A good case can better protect your watch, 316L can be polished, frosted, can be plated with various materials, stable performance, is the best choice for the case.
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: Rose Gold-tone. About the watch, the hands is rose gold-tone which is pretty cool and fashionable.
Second Markers: Minute Markers around the outer rim. The small mark on the outer edge of the glass is one of the most recognized design elements in all industries, and the minute mark around the outer edge.
Dial Markers: Luminous Index. This watch uses a luminous stick, which glows when you leave the light.
Luminiscence: Hands and Markers. About the watch, the luminiscence is hands and markers. These luminiscence makes your watch more refined and high-end.
Bezel Material: Stainless Steel. Bezel material is more simple and endurable. It makes you improve your temperament from the inside out.
Clasp: Deployment. Deployment clasps are used here to make it easier and faster for the user to open and fold the watch case to keep it secure.
Water Resistance: 30 meters. About the watreproof depth of the watch, it 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.