Hy,
I got this stopwatch Sinn and when look at movement i see its made in Heuer style. Becouse I can not find caliber number inside and I did some search with no positive results I am asking if some1 recognize this caliber? Thank you for any infos.
Heuer did not make its own movements for Stopwatches- they were supplied by Valjoux, Baumgartner Freres/ Lemania and others...so yes, the movements would be exactly the same