Casio 31SQ-11

July 4, 2020

This Casio 31SQ-11 dates from around 1977,  I bought in a job lot of Casios’s (See photos). It was this one I wanted in the lot so old everything else and kept this one by that point for free.  It required quite a bit of work in the end to get it to run and then I polished the case to give it the shine back.  You can watch the service of this watch on my YouTube channel here Vintage Casio Service

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