SMA 8072 Alloy Outdoor Men Dual Display Waterproof Watch BlueFeatures:1. display, it is clearer to see the time at night2. Using plexigl mirror surface, scratch-resistant and wear-resistant, the mirror surface is clear and transparent3. ectronic quartz movement, durable, long life, LED large screen display4. 50 meters waterproof, support swimming wear, let you do whatever you want5. Button anti-skid design, simple and convenient operation, one-button switch dial function6. The alarm clock mode can be set, the memo is not easy to forget, and the alarm sound is clear7. Shock-absorbing technology effectivy alleviates the impact of falling on the watch8. Stainless ste back cover, waterproof and dustproof9. TPU strap, soft and skin-friendly, good toughness, porous design, comfortable to wearParameter:1. Function: decoration, night light, alarm, calendar, time2. Wearing range: 10.5-17cm3. Display type: pointer number4. Case material: alloy5. Bottom cover material: stainless ste6. Strap material: PU7. Mirror material: plexigl8. Buckle material: stainless ste9. Buckle style: pin buckle10. Waterproof performance: 50m11. Movement: quartz ectronic movement12. Display type: pointer number13. Power supply mode: built-in button battery14. Dial diameter: 49mm15. Dial width: 55mm16. Band width: 23mm17. Dial thickness: 22mm18. Total length of strap: 250mm19. 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