BOS watches, origined from German in 1988, was founded by Angela Von Bos. With unique and fashion design,strict demand on technical process, after 100 years development, BOS watch has became one of the most famous and popular watch brand in German and around more than 20 countries. As BOS's purpose 'Excellent craftsmanship & Careful inheritance', each BOS watch you have will stay fresh in your life, worthy of inheritance. Reason for choosing BOS WATCH: 1: 30 days money back guarantee for any reason 2: 12 months replacement or full refund for quality issues 4: Gift-warp available, suitable for gift to your family/friends/business partners 4. 24 hours after-sales service provided 5:Attached remover tool included, you can adjust the band to fit your wrist without going to repair store. Packing include: 1x watch 1x Gift box 1 x Gift bag 1 x Service card 1 x Wrap 1 x User manual for watch 1 x Thanks card About Automatic Mechanical watch Mechanical watch mainly uses spring to reserve power, and drive the movement of its caliber through balance wheel. It can be wound by hand or automatically (with energy derived partly from the movements of the wearer's wrist) to drive the running of its caliber. If being worn with enough time every day, it do not need manual winding. For peoples don't move so much, we suggest them wind it manually every day to ensure that it will operate perfectly. How to wind the mechanical watch? When you first get the watch, please clockwise the crown (without pulling it out) for 20-30 times to power it up. If you don't wear the watch everyday, you need to wind it up and adjust time once you wear it.For every full-wind, the watch can keep about 36 hours.
• High Quality Japanese Citizen Mechanical Movement
• 316L high quality stainless steel case and butterfly clasp,easy to wear and comfortably;
• High hardness synthetic sapphire crystal surface;case diameter:38mm, case thickness:10mm, band width:20mm
• Waterproof of 30M(100 feet), withstands rain and splashes of water, but not hot water showering
• Gift-wrap available. 1Xwatch, 1Xgift bag in 1 shipping package.The shipping weight is 1 pound.