Brand: WISHDOIT Movement: mechanical movement (without battery) Dial diameter: 44MM/1.73in Dial thickness: 13mm/0.51in Strap width: 20mm/0.78in Watch function: 24 hours/sun, moon and stars Wearable length: 21cm/8.26in (including dial) Strap style: solid silver stainless steel strap Travel time description: Mainly the mechanical movement automatically winds the winding. Occasionally, when the power is insufficient, the travel time will be inaccurate, and manual winding is required to ensure accurate travel time. (There is a reasonable error in the measurement data, subject to the actual product) Square stainless steel mechanical watch Automatic mechanical watch Sports men's watch Skeleton hollow mechanical watch Handsome men's watch Waterproof ✓ ✓ ✓ ✓ ✓ Steel ✓ ✓ ✓ ✓ ✓ Self-winging ✓ ✓ ✓ ✓ ✓ Mechanical ✓ ✓ ✓ ✓ ✓