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GA-2000 Carbon Core Guard G-Shock tutorial - how to setup & use ALL the functions on the 5590 module - YouTube
![GA-2000 G-SHOCK 5590 Set Time, Date, Home City,12/24H , Key operation tone, DST, Light duration Demo - YouTube GA-2000 G-SHOCK 5590 Set Time, Date, Home City,12/24H , Key operation tone, DST, Light duration Demo - YouTube](https://i.ytimg.com/vi/q8mGCtWQKPw/sddefault.jpg)
GA-2000 G-SHOCK 5590 Set Time, Date, Home City,12/24H , Key operation tone, DST, Light duration Demo - YouTube
![Just bought my first g-shock (GM-2100MF). Love the way it looks but concerned it's a fake. The internal module number (during testing mode) shows up as 5590 instead of 5611. Anybody else Just bought my first g-shock (GM-2100MF). Love the way it looks but concerned it's a fake. The internal module number (during testing mode) shows up as 5590 instead of 5611. Anybody else](https://preview.redd.it/just-bought-my-first-g-shock-gm-2100mf-love-the-way-it-v0-vk36oml6nbm91.jpg?width=3024&format=pjpg&auto=webp&s=346548d91f3df8a7a036997c6035e7fd22982ce8)
Just bought my first g-shock (GM-2100MF). Love the way it looks but concerned it's a fake. The internal module number (during testing mode) shows up as 5590 instead of 5611. Anybody else
![Casio | Accessories | Casio Gshock Module No 559 Mens Watch From 209 With Instruction Manual | Poshmark Casio | Accessories | Casio Gshock Module No 559 Mens Watch From 209 With Instruction Manual | Poshmark](https://di2ponv0v5otw.cloudfront.net/posts/2023/05/22/646b99588634cb2a03e16378/m_646b997417e49ce204218e2d.jpg)
Casio | Accessories | Casio Gshock Module No 559 Mens Watch From 209 With Instruction Manual | Poshmark
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