![Amazon.co.jp: Men's Digital Watch, Sports, Fashion, Military Style, Running Watch, Dual Time, Dual Time Display, Alarm, Alarm Clock, Luminous, Water Resistant to 50 Meters, Dustproof, Vibration Resistant, Black, Japanese Instruction Manual Included, Amazon.co.jp: Men's Digital Watch, Sports, Fashion, Military Style, Running Watch, Dual Time, Dual Time Display, Alarm, Alarm Clock, Luminous, Water Resistant to 50 Meters, Dustproof, Vibration Resistant, Black, Japanese Instruction Manual Included,](https://m.media-amazon.com/images/I/71LrSYYxPBL._AC_UY580_.jpg)
Amazon.co.jp: Men's Digital Watch, Sports, Fashion, Military Style, Running Watch, Dual Time, Dual Time Display, Alarm, Alarm Clock, Luminous, Water Resistant to 50 Meters, Dustproof, Vibration Resistant, Black, Japanese Instruction Manual Included,
![CASIO AQ-230 (MODULE 5154) - How to Set the Time, Date, Alarm, use the Stopwatch and Dual Time! - YouTube CASIO AQ-230 (MODULE 5154) - How to Set the Time, Date, Alarm, use the Stopwatch and Dual Time! - YouTube](https://i.ytimg.com/vi/xyPI6_Iyg40/maxresdefault.jpg)
CASIO AQ-230 (MODULE 5154) - How to Set the Time, Date, Alarm, use the Stopwatch and Dual Time! - YouTube
![Amazon.co.jp: Digital Watch, Men's Wristwatch, Digital Headwatch, Cheap Waterproof, Stopwatch, Military Watch, Sports Watch, Dual Time, Stylish, Alarm, LED, Alarm Clock, Japanese Instruction Manual Included, Black, Silver I, 🚴 : Clothing, Shoes Amazon.co.jp: Digital Watch, Men's Wristwatch, Digital Headwatch, Cheap Waterproof, Stopwatch, Military Watch, Sports Watch, Dual Time, Stylish, Alarm, LED, Alarm Clock, Japanese Instruction Manual Included, Black, Silver I, 🚴 : Clothing, Shoes](https://m.media-amazon.com/images/I/71tkUlwmL-S._AC_UY580_.jpg)