Argh, that's a shame. What do the contacts on the rear of the watch look like? Are they corroded?
Have you tried using a different USB charger?
Also, if you have a volt meter it'd be worth checking that there's voltage on the outer two contacts of the cable - it might be that the charge cable is broken?
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Argh, that's a shame. What do the contacts on the rear of the watch look like? Are they corroded?
Have you tried using a different USB charger?
Also, if you have a volt meter it'd be worth checking that there's voltage on the outer two contacts of the cable - it might be that the charge cable is broken?