• Automatic mechanical watch: Self-winding， doesn't need battery， environmentally friendly.
• Three working sub-dials: One to display date， one to display day， and one as 24-hour format hour sub-dial.
• Double scales design， let you get time accurate to minute.
• Stainless steel case and band， sturdy in structure and uneasy to scrape.
• Folding clasp with safety， easy to take on and off.