I once asked a Negril local rasta kind of dude what time it was and he told me it was day time.... lol! Only two times in Jamaica, day time and night time! Leave the watches at home, there's no need for them in Jamaica.

As to using travellers cheques, that's all we've done each trip and no problems. That's not to say it can't happen I guess. Also found that the Scotia Bank was most convenient with a long wait on occasion but nice A/C, for cashing said travellers cheques. Always best exchange.

Peace
Elvino