1975 Hamilton W10-6645-99 British Military Issue Mechanical Wristwatch with Hacking Seconds casesize_34mm Movement : Cal 30LAge :

Movement : Cal 30LAge : 1961/1969Specific Age : 1964-66Case Size : 33

234Age : 1941/1950 Specific Age : 1940s Case Size : 38mmCase Thickness : Lug to Lug : Lugs : 18mmCondition : Pre-OwnedBox & Papers : No Case Material :  Stainless SteelService History :  Our 12-Months NON-Waterproof Warranty

Reference : 6B-9101000-H-3099-M

put simply

1975 Hamilton W10-6645-99 British Military Issue Mechanical Wristwatch with Hacking Seconds casesize_34mm Movement : Cal 30LAge :This Watch We have here a classic W10 military watch that is rapidly becoming very desirable. The monocoque, tonneau shaped, stainless steel case back is engraved 'W10 6645 99, 523 8290, 6699 75' and also with the Broad Arrow. It has fixed lugs, as with all military watches, and houses a manual wind cal. ETA 2750 with hacking seconds. The black dial has a slight, but even patina, and the dial is signed 'Hamilton', the 'Circle T' (for the Tritium lume)