Ooops.yu did say AAs not essential, please ignore ^^
Ricoh are well built cameras, I wouldn’t sniff at an R8 or a GX100 even.
For shock/wproof there are a few getting longer in tooth and cheap used nowadays. ie Panasonix TS3 or FT2
Better half has an Ixus, has been very reliable and is dinky but more of a handbag lurker than a bikeproof camera.
I used to have a lumix TZ3 which felt very solid and took nice shots straight out of the camera, just had to be careful (as with all external mechanical zooms) to keep grit out of zoom mech. They are a steal nowadays. Been through a few lumix upgrades since (last being T20) and tbh the TZ3 compared very favourably with all. Bit big for pocket though, as is the S70, another solid used bargain if well kept. Hmmm.