Rolex Submariner Men’s 40mm 116618LB Black Dial Automatic

Bezel Material: Ceramics Bezel. The ceramic bezel is the prime material used for watch making. It has is a high-end material made from Ceramic. It is the most expensive material of the watch. In addition, Ceramic is a substance with high flexibility and energy absorption properties which can be used as the core medium of the watch.

Band Material: 316L. The band made of 316L, the hardest material, not only directly protects the internal parts of the watch, but also determines the various performance indicators of the watch to a large extent.

Crystal: Sapphire Crystal. Sapphire crystal has extremely high hardness, with Mohs hardness as high as 9, second only to diamond, and almost 3 times the hardness of mineral glass and 20 times that of acrylic mirrors. Tips: The first ordinary movement watch is applied with mineral glass.

Luminiscence: Hands and Markers. The style of the watch’s luminiscence is hands and markers. It can help you know the corresponding time in the dark.

Second Markers: Minute Markers around the outer rim. The second mark on the dial can be used in various applications, such as clocks and radios with clocks, to create timeless creations.

Clasp: Fold Over Clasp. This watch case has a designed clasp to make it easier and quicker for the user to open and fold the case over to keep it secure.

Dial Markers: luminous dot. The bright luminous dots marked on the dial tell you the time in the dark. The light from the watch shines through the lens, allowing us to clearly see the time.

Case Back: Solid. The case has a thick back, which is neither soft nor flexible. Made of steel, it has excellent durability and scratch resistance.

Watch Case: 316L. The material in this example comes from 316L stainless steel, which is a medium-to-high-grade shell material. Because it contains molybdenum, it is more corrosion-resistant than 304, and the grade is also higher.