This is 40mm Union Diplomat from circa 2005. I bought it new old stock few months ago. The article about caliber Union 26 which is basically GO cal 39. you can find at Purist Pro article by Marcus Hanke. What about watch - beautifully crafted dial and hands (both GO and Union shared the same factory at the time), case finish - all top. When Swatch Group realised that Union is GO competitor, they changed the brand way, and now Union is some sort of Certina or Longines in their portfolio, sad but true.
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