Casio, Ref. 1170-ATC 1000, Japan. Produced circa 1995.Fine asymmetrical, water-resistant, black and anthracite, plastic digital diver's chronometer wristwatch with multi-functions including: compass, various units of measure (meters/feet, Celsius ...
The very first Protrek watch reviewed. | WatchUSeek Watch Forums
SAT CASIO ATC-1000 PROTREK-TROSTRUKI SENZOR-JAPAN
FS:Vintage Casio ATC-1000 NOS-265 Euro shipped - myWatchMart
Casio ATC-1000 (The Original Pro Trek) | WatchCharts