|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||Black Dial|
Dial Markers: Index. The index dial mark is different from the normal dial, you can check the time by checking the index.
Case Back: Transparent. The transparent back cover is not soft or flexible in any way. It helps you see the engine inside clearly.
Water Resistance: 30 meters. The waterproof depth of the watch 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.
Watch Case: 316L. The raw material in this case is 316L for daily seawater corrosion, and 316L steel is completely sufficient.
Crystal: Sapphire Crystal. Sapphire glass has high-quality glass, you can clearly see the dial. Tips: The A watch is applied with mineral glass instead of sapphire.
Bezel Material: Stainless Steel. The watch uses a stainless steel bezel, which is an endurable material that can be used for dials and watch faces. It’s extremely resistant and flexible. Learn to design a gorgeous hand-made stainless steel bezel and how one can use it to create a luxury watch.
Function: Date, Hour, Minute, Second. The watch has a indicate date that can measure hours and seconds accordingly.
Hand: Silver-tone. For the watch, we apply with hands of silver-tone, which is delicated and cool.
Clasp: Fold Over Clasp. Our this watch uses a folding buckle strap, which is more durable and stylish.
Band Material: 316L. The band is made of the best 316L stainless steel, which has excellent corrosion resistance. The band is also hypoallergenic and scratch-resistant. It can withstand high temperature environments and provide shock protection.