I built this ruby cli that syncs my calendar to my timex datalink from 1996.

https://github.com/wjhrdy/timex-datalink-caldav/

July 18th is the current official release date for SDXL 1.0

Boardsource Lulu with gazzew u4t

It makes your watch look great! There are some major downsides however:

1. Silicone oil can make the rubber shock resistant components in certain gshock models swell which is fine till you need to replace the battery then the case won't go back together.
2. In cheaper, less waterproof models oil has a tendency to leak out. My Casio royale leaks which makes it always feel a bit greasy.
3. It can be quite hard to accomplish a bubble free hydromod unless you have a vacuum chamber.