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Shaun Cuff A Twitter: Just Fitted New Batteries To My Casio This Particular Model Is 25 Years Old And Was Casio's First Triple Sensor Watch (digital Compass, Altimeter And #WearableTech | icbritanico.edu.ar
CASIO PROTREK ATC-1100 BJ-1 Outdoor Gear Watch Triple Sensor Module 1171 Rare Japan M | WatchUSeek Watch Forums
CASIO ATC-1100 Vintage quartz digital watch From Japan | eBay