Discontinued CASIO DATABANK CA-53W in black. ※This is an old model, a discontinued item, as indicated by the "WR" in the upper right corner not being enclosed in a hexagon. An old model of a multi-function watch equipped with a calculator function. I think the condition is good, but please judge from the images. ■Size H x W x D Approx. 43.2 x 34.4 x 8.2mm Wrist circumference: 13-20cm ■Color Case, dial, belt: Black ■Water resistance Daily life waterproof ■Functions Dual time 8-digit calculator function Stopwatch (1/100 second, 24-hour counter) Daily alarm Full auto-calendar 12/24 hour display switching Operation sound ON/OFF switching function