Casio Digital Vintage Overseas Model Watch, Series, B640WD-1AV, Unisex, Silver, [Used]

[Size] Case size (length x width x thickness): 38.9 x 35 x 9.4 (approx. mm), Strap width: approx. 15 (buckle side) - 20 (case side) mm, Lug width: approx. 18 mm, Band size: 135 - 200 mm, Weight: approx. 49 g [Material] Case: Resin, Band: Stainless steel, Crystal: Resin glass [Water resistance] 5 ATM [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) [Clock functions] * Stopwatch (1/100 second, 24 hour counter, with split) * Timer (set unit: 1 second, maximum set: 24 hours, measured in 1/10 second units, time-up sound for 10 seconds) * Time alarm and hourly signal * LED light (with afterglow), light color: amber * Full auto-calendar * 12/24 hour display switching * Accuracy: average monthly difference ±30 seconds * Battery life: approximately 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.)