Caliber 9170 Power reserve 40 hours 26 jewels Frequency 28.800 A/h Standard deviation +- 15 sec/day Steel case and bracelet Sapphire Crystal Glass WR100 Diameter 41 mm Lug to Lug 47 mm Thickness 12 mm Bracelet width 22 mm Perpetual Calendar World Time GMT function Bracelet for Wrist Size 19cm Worn No evident Scratches No Box Very Good Conditions Manuals and instruction https://www.citizenwatch-global.com ( search for caliber 9170) Price is negotiable