|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|
Crystal: Sapphire Crystal. Sapphire glass has sapphire, which is high-end and has a good reputation. Tips: The A watch is applied with mineral glass instead of sapphire.
Dial Markers: Index. With a index instead of Roman numerals to show us the time.
Hand: Silver-tone. As for the watch’s hands, it is silver-tone, which is delicated and cool.
Luminiscence: Hands and Markers. Regarding this watch, luminescence is hands and markers. These luminiscence makes your watch more refined and high-end.
Second Markers: Minute Markers around the outer rim. The minute mark around the outer edge of the glass is a design element representing time, also called a hand, which has been used in many famous designs.
Clasp: Fold Over Clasp. The clasp design of the watch to make it easier and faster for the user to open and fold the watch case to keep it secure.
Watch Case: 316L. The raw material of this watch is the hardest 316L, which will never fade, deform, or abrade the skin, and is environmentally friendly.
Function: Date, Hour, Minute, Second. A watch is a very important device in everyone’s life. The watch is equipped with a timekeeping function to measure time, a minute dial to estimate the current time, and a stop dial to estimate the time after an interval.
Bezel Material: Stainless Steel. The watch bezel is the most expensive component of the watch. It is has high dimensional stability, high resilience and UV resistance. It can be used in both hard and soft cases. It’s also resistant to water, heat and deliquescent substances like oil or food.
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. As for the waterproof depth of the watch, it is 30 meters, full enough for your daily life. Tips: The A watch is just daily waterproof, need to purchase additional waterproof service which is up to 30 meters.