Longines 633.1, 25 jewels, incabloc, 40 h power reserve, 28800 A/h fast beat rate, sweep second hand, triovis micrometer regulator, hack feature (second hand stop when adjust time).
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03 / Longines movements, Automatic, For work
Longines automatic cal. 633.1 – FOR WORK
VinMov / Serbia GS 