|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|
|Case Color||Rose Gold-tone|
|Dial Color||Brown Dial|
Watch Case: 316L. The case uses 316L for daily seawater corrosion, and 316L steel is completely sufficient.
Case Back: Transparent. xxxxx usually uses a transparent back, which is more waterproof than a through-bottom one.
Crystal: Sapphire Crystal. Sapphire glass has 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: Rose Gold-tone. The hands of the watch is rose gold-tone which is pretty cool and fashionable.
Second Markers: Minute Markers around the outer rim. The second mark on the dial is also called the clock hand. This design element has been used in many famous designs such as watches, clocks and other objects.
Dial Markers: Arabic Numeral. According to a study, the human eye is sensitive to number, are used as a markers to indicate what time it is.
Luminiscence: Hands. The luminosity of the watch is hands. As you can see in the pictures above.
Bezel Material: Stainless Steel. The stainless steel bezel is the prime material used for watch making. It has is more simple and endurable. It makes you improve your taste from the inside out.
Clasp: Deployment. The clasp design of the watch which is more convenient for disassembly and replacement, and also ensures the quality and comfort of the strap.
Water Resistance: 30 meters. As for the waterproof 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.
Function: Date, Hour, Minute, Second. Watches have many functions, and like any other electronic device, it plays an important role in our lives. The functions of the watch are chronograph, hour, minute and second.