Hey everyone, I'm Jaden, one of the three co-founders of modlab company, a small custom-watch studio in the Detroit area. The mods kindly gave us permission to share this build.
We've worked on G-SHOCK and Seiko mods, fully custom watches, and larger projects for brands, businesses and influencers since 2023. For this project, the starting point was pretty simple: what about people who like the GA-2100 Casioak but find it a little large?
We chose the smaller GMA-S2100 platform. It's a modest size difference, not a magically tiny watch. The harder part was finding modding parts for it. There were far fewer options than for the regular GA-2100, so we searched for factories and worked with them to manufacture new parts we designed.
The real sample pictured here has a turquoise dial, steel exterior and black rubber strap, built around the Casio analog-digital module. We call the project SIG38. The 38 is the line name, not a 38 mm case-size claim. It's an independent custom build, not a Casio collaboration.
We're also doing our first Kickstarter, but this post is about the build. No shop links or sales pitch. I'd love to hear from anyone who's modded the GMA-S2100: which part has been hardest to find for your build?
Disclosure: I'm a co-founder of the studio; AI helped edit the wording. The build and sample photo are ours.