Old Tom wrote:It is a Hughes "Made in Scotland" (should be assembled in Scotland! by Timex in Dundee) and while at first sight you would think any Hughes module would fit be aware that about 50% of these have a slightly different layout on the plastic carrier compared to "Made in... USA, Mexico, Phillipines, Hong Kong and Taiwan" Hughes modules. This only matters when you have a watch with rear battery hatches as the hatches may not line up with the battery wells (Rotary watches are the biggest offender) and while you can pop the batteries in you cannot get them back out without dismantling the watch.
I have/had a slightly different theory on those Rotary(and Sequenta, amongst others) watches where the hatches don't work out quite right - they originally had Exonix modules in them, which have the identical button layout but the battery hatches are a hair different in alignment. I've had several come to me with Exonix module in them. 1/100 stopwatch off the 7 oclock button. This watch is loaded that way....a slight turn of the back from the alignment markings before snapping on and it is an easy battery change.
http://www.retroleds.com/Items/WA337.htm
I've never noticed any battery hatch location difference in Hughes carriers on 29mm modules(could be that some variant was more widely distributed in Europe, I'm in USA). 25mm Hughes do have an odd varient that has a yellow translucent carrier and a protruding location nub. Standard equipment for one of the Timex models. That Hughes/Timex connection is funny to me...Timex usually tried to make all their own stuff and ditto on Hughes. A sick love affair for sure!

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