Fangrui Product Details 1. Ruolindo Gd303 Steel Strap Calendar Men Quartz Watch 2. Movement: Quartz Movement 3. Power Supply: Contains 377 Button Battery, The Power Can Be Used For About 4-6 Months 4. Dial Material: Alloy 5. Strap Material: Stainless Steel 6. Mirror Material: Mineral Reinforced Glass Mirror 7. Buckle Material: Stainless Steel 8. Dial Diameter: About 4cm 9. Dial Thickness: About 1cm 10. Strap Width: About 2cm 11. Total Length: About 20cm 12. Weight: About 110g 13. Packaging: Opp Bag 14. Instructions: It Has A Certain Degree Of Waterproof Effect In The Case Of Washing Hands, Rain, Etc. However, It Cannot Be Worn In Hot And Humid Environments Such As Bathing, Swimming And Saunas. In Summer, The Dial Will Fog Up, Which Will Generally Disappear By Itself After A Few Hours. This Is A Normal Phenomenon, Please Feel Free To Use It 15. Warm Reminder: If The Watch Is In A Humid Environment For A Long Time, It Will Cause The Belt To Crack And The Case To Lose Its Luster And Discoloration. Therefore, Out Of Love For The Watch, Please Try To Avoid Contact With Water Designed For Modern Living Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.