The known prof. "Diver" by Citizen...type Aqualand II with ref. C500-E80397 Analogue time indication + 2 digital windows. The solid steel case is 46 mm across. Rotating diver's bezel (diameter is 41 mm) and a screwed crown. Everything in nearly unworn condition, hardly any signs of wear and no damage. Mineral glass is still as new, without scratches. Screwed case back with all the numbers. caliber C500 All functions work properly (the diving sensor has not been tested). Depth gauge, diver's log for 4 dives with depth, duration, start, end, temperature, etcetera. Depth alarm, dive alarm, altimeter, surface alarm, barometer, stopwatch, alarm, day and date, water sensor etc. Special dial with background lighting. The hands light up very brightly in the dark. Fitted with the original black plastic strap, suited for a wrist of up to 25 cm in circumference. A professional men's diver's watch, waterproof to 200 m. and with an old-fashioned Japanese top quality. A lot of info on Internet, just google C500 (e.g. at "watchguy" there is a perfect manual).