Longines 5 Star Admiral] from the 60s or 70s - I think the reference number is 2946-507. Feel free to add any info about this watch in the comments : r/Watches
LONGINES Mouvement 507 Utilisé | eBay
WATCH LONGINES ADMIRAL CAL.507 GOLD FILLED CASE | WatchCharts Marketplace
Montre Longines Spirit automatique cadran noir bracelet acier 42 mm