SMA 8072 Alloy Outdoor Men Dual Display Waterproof Watch BlueFeatures: 1. display, it is clearer to see the time at night 2. Using plexigl mirror surface, scratch-resistant and wear-resistant, the mirror surface is clear and transparent 3. ectronic quartz movement, durable, long life, LED large screen display 4. 50 meters waterproof, support swimming wear, let you do whatever you want 5. Button anti-skid design, simple and convenient operation, one-button switch dial function 6. The alarm clock mode can be set, the memo is not easy to forget, and the alarm sound is clear 7. Shock-absorbing technology effectivy alleviates the impact of falling on the watch 8. Stainless ste back cover, waterproof and dustproof 9. TPU strap, soft and skin-friendly, good toughness, porous design, comfortable to wearParameter: 1. Function: decoration, night light, alarm, calendar, time 2. Wearing range: 10.5-17cm 3. Display type: pointer number 4. Case material: alloy 5. Bottom cover material: stainless ste 6. Strap material: PU 7. Mirror material: plexigl 8. Buckle material: stainless ste 9. Buckle style: pin buckle 10. Waterproof performance: 50m 11. Movement: quartz ectronic movement 12. Display type: pointer number 13. Power supply mode: built-in button battery 14. Dial diameter: 49mm 15. Dial width: 55mm 16. Band width: 23mm 17. Dial thickness: 22mm 18. Total length of strap: 250mm 19. Weight: 74gFriendly reminder: 1. Any waterproof watch should not be brought into with hot water or steam (such as hot water bath, sauna, etc.); 2. Try to avoid using it in an environment with large temperature changes. The temperature difference will cause the moisture in the air in the watch to condense, which will cause water inflow and water mist in the watch; 3. If there is fog in the watch, please go to a professional watch repair department for cleaning and maintenance as soon as possible; 4. The wa