Some data: I had a "Tough Solar" G shock for field work- it was very long lasting. I got it in 2002 (if memory serves) and it lasted about a dozen years. By tha

Some data: I had a "Tough Solar" G shock for field work- it was very long lasting. I got it in 2002 (if memory serves) and it lasted about a dozen years. By that point the capacitor could not hold a charge very long at all, and it became unusable. I set it aside and a few year later the rubber bits fell apart including stuff around the case. I'd say by 15y it was totally toast. Not bad considering I never did a single bit of service on it, but definitely a reminder that time always wins in the end. Even when it comes to your timepiece!