I bought a 200B watch last time I was in Thailand, at the stalls leading down from BT to Sunee (on the BT side)- because I liked the face (I pick my boys the same way )
Anyhow - the strap was a couple of inches short, only fastened at the second last hole and accordingly had started to disintegrate within a few days and the battery lasted about a month.
I've since replaced the battery (which accounted for 50% of the cost of the watch) and I'll probably get a new strap fitted which will account for 100% of the original cost of the watch.
Buying stuff that's dirt cheap, looks good, but is absolutely shit is an integral part of any trip to Thailand.