The men automatic watch with Swiss T100 Tritium Tubes, which have super bright effect in dark. The crown with screw in waterproof design. the mirror is equipped with high-grade synthetic sapphire mirror, professional level 100M waterproof, the watch with crown protection device, the mens watches is suitable for dive, swimming, sport, business etc. the men sport watch is equipped with Swiss 2824-2 25 jewels  automatic movement, the accuracy is +- 10 seconds / day, stable and reliable. as the same time, it also shows the excellent overall quality. 

Swiss H3 spontaneous luminous
Using 15 original Swiss H3 tritium tubes, self-luminous for 25 years, it can clearly display the time in any harsh and dark environment.

Automatic Movement ETA 2824-2: Swiss ETA 2824-2 25 Jewels Automatic Mechanical Single Calendae Movement provides a precise time and a storage of energy over 40 hours. It is powered by the natural movements of your wrist. Mechanical watches must be worn at least 8 to 10 hours a day, if it does not get enough energy, please wind your watch manually by rotating the crown about 20 laps.

Model:V1022
Luminous:Swiss H3 T100 Tritium Luminous
Movement:ETA 2824-2 25 Jewels Automatic Mechanical Single Calendae Movement
Mirror:Sapphire Mirror
Watchband:Genuine Leather Strap
Crown:The Left Rear Worm Gear Type Crown Protection Device+316L Stainless Steel
Buckle:316L Stainless Steel
Case:316L Stainless Steel
Backcover:Transparent Back Cover
Weight:120G
Waterproof:100m
Size:44.0mm*13.8mm (Diameter*Thickness)