Hacker News Reader

The rechargeable batteries still need to be replaced, and it's hard for non-Casio dealers to get them AFAIK.

Best option is a watch with a common battery type (e.g. CR2016) and accessible battery compartment.

They're standard rechargeable batteries in sizes like CTL1616, which are easy to get.

AFAIK they don't need to be replaced on a comparable time frame if the watch regularly gets light.