|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||Super Luminova 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|
Watch Case: 316L. The case is made of the best 316L steel, which is a very strong and corrosion-resistant steel. It has the same strength as the most popular grades (HRC52, HRC55), but only half the weight. Compared with competitors, the production cost of stainless steel is also higher.
Case Back: Transparent. xxxxx usually uses a transparent back, which transmits a high taste and good looking than solid back.
Crystal: Sapphire Crystal. The design of the crystal is a special anti-reflective coating that minimizes light reflection and provides scratch resistance without affecting its brightness. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. The hands of the watch is silver-tone that is simple but luxury.
Second Markers: Minute Markers around the outer rim. The second mark on the dial The second mark is a small disc placed on the outside of the clock to indicate the time.
Dial Markers: Arabic Numeral. The watch with arabic numeral is used as a marker instead of dots and can affect the appearance of the dial.
Luminiscence: Hands and Markers. About the watch, the luminiscence is hands and markers. The luminous things makes you find the time in dark.
Bezel Material: Stainless Steel. The stainless steel bezel is more simple and endurable. It makes you improve your taste from the inside out.
Clasp: Deployment. The innovative design of this watch which allows the user to fold it over in multiple positions or angles for unique use.
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.
Function: Date, Hour, Minute, Second. At the same time, it has the functions of the second, minute and hour hands.