Rolex Day-Date 40mm m228206-0045 Men’s Grey Dial Silver-tone

Dial Markers: Luminous Index. The bright luminous sticks marked on the watch dial is a new type of sensor that can detect the time in the dark. When receiving a signal from an external source, this sticks will light up. It then sends a signal to the computing device, telling it when to turn the lights on and off.

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 clock hand, which has been used in many famous designs, such as watches and other objects.

Bezel Material: Stainless Steel. The stainless steel bezel material is one of the best materials for watches. It 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.

Watch Case: 316L. The case is made of 316L stainless steel, the hardest material, which is a medium-to-high-end case material. Because it contains molybdenum, it is more wear-resistant than 304, and the grade is also high.

Luminiscence: Hands and Markers. The luminosity of the watch is hands and markers. It makes your watch look more high-end.

Clasp: Fold Over Clasp. This watch use a fold over clasp is a great way to protect and store your watch. It has a unique design that creates a secure lock, which can be easily opened and closed.

Water Resistance: 30 meters. The watch’s waterproof depth is 30 meters. But make sure to close the crown properly. Tips: The standard configuration is just life waterproof, need to purchase additional waterproof service which is up to 30 meters.

Band Material: 316L. The raw material of this watch is the hardest 316L, which is suitable for daily seawater corrosion. 316L steel is completely sufficient.

Function: Date, Hour, Minute, Second. The function can be used to measure hours and seconds accordingly.

Crystal: Sapphire Crystal. Sapphire crystal is a good choice because its hardness is very high, Mohs hardness is as high as 9, second only to diamond, and its hardness is almost 3 times that of mineral glass and 20 times that of acrylic mirrors. Tip: The first-range cheap movement version is made of mineral glass.