|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|
|Dial Color||Blue Dial|
Band Material: 316L. The raw material of this watch is the hardest 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.
Watch Case: 316L. The watch case is made of 316L stainless steel, which is a medium-to-high-end shell material. Because it contains molybdenum, it is more wear-resistant than 304, and the grade is also nice.
Case Back: Transparent. The transparent back cover can better transmit your high taste for watch than solid back.
Crystal: Sapphire Crystal. A good sapphire mirror can block moisture and dust, protect the hands, dial and movement. Tips: The A watch is applied with mineral glass instead of sapphire.
Hand: Silver-tone. As for the watch’s hands, it is silver-tone, which is delicated and cool.
Second Markers: Minute Markers around the outer rim. The minute mark on the outer edge of the glass is a design element that represents time, also known as a clock hand, which has been used in many well-known designs, such as watches and other objects.
Dial Markers: Index. The watch with index are used as dial markers instead of usual Roman numerals to indicate the time.
Luminiscence: Hands and Markers. The design of the watch’s luminiscence is hands and markers. It helps you know the according time when in dark.
Bezel Material: Stainless Steel. Stainless steel bezel is a material that is one of the most beautiful and delicate parts in the watch. The stainless steel bezel provides a durable, endurable and expensive look to the watch.
Clasp: Fold Over Clasp. The clasp design of the watch to make it easier and quicker for the user to open and fold the case over to keep it secure.
Water Resistance: 30 meters. About the watreproof 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.
Function: Date, Hour, Minute, Second. The watch is a timer with indicate date, and the watch can measure time and seconds accordingly.