Casio Quartz Vintage Dual Overseas Model ANA-DIGI Watch, Series, AQ-230GA-9DMQ, Unisex

[Size] Case size (length x width x thickness): 38.8 x 29.8 x 8.1 (approx. mm), Strap width: approx. 15 (buckle side) - 20.5 (case side) mm, Lug width: approx. 18 mm, Band size: 140 - 205 (approx. mm), Weight: approx. 47 g [Material] Case: Resin, Band: Stainless steel, Crystal: Resin glass [Waterproof performance] Waterproof for daily life [Accessories] Japanese instruction manual (copy), foreign language instruction booklet, plain generic box (not a Casio box) [Band size adjustment method] Free sliding type (requires separate tool) [Major functions] ●Dual time ●Stopwatch (1/100-second, 60-minute counter) ●Time alarm and hourly signal ●Auto-calendar ●Switchable between 12-hour and 24-hour formats ●Accuracy: ±30 seconds per month ●Battery life: 3 years (This is the figure when a new battery is installed. The battery pre-installed in the watch is a monitor battery used to check the functions and performance of the watch, so battery life will be shorter.)