"":Specifications Material: Case, caseback, band: stainless steel (hairline finish on bezel top), windshield: mineral tempered glass (curved top), special box: synthetic leather, plastic, rayon, acrylic, paper Case size (approx.): 50 (length) x 37 (width) x 12 mm (thickness) Wrist circumference (approx.): s = 15.5 cm, m = 16.5 cm, l = 18.5 cm Special box size (approx.): 10.6 cm (length) x 10.6 cm (width) x 7 cm (thickness) Movement: Miyota quartz (made in Japan) Accuracy: ±20 sec. per month Water resistant to 3 atmospheres 1 year quality warranty Made in China Wrist circumference measurement sheet (pdf:462KB)"