Hamilton G.S General Service
Hamilton GS (G.S) or General Service Watch
Ref: 75003-03 The Hamilton GS ("General Service") was produced from 1960 to the end of 70' for the non-military personnel of the British armed forces and UK goverment personnel.
Hamilton G.S. Tropicalized is a special version for use in tropical areas. It was used primarily in the Commonwealth, and in overseas diplomatic establishments abroad. In addition, they also acted as a cover for a number of the military men who helped nations organise their own security and law enforcement on behalf of HM Government.
The following variations have been identified:
- Hamilton GS Tropical - Cal 684 (hack)
- Hamilton GS Tropical - Cal. S75S (hack)
- Hamilton GS 13-24dial - Cal. S75S (hack)
- Hamilton GS Commercial - Cal. S75S (hack)
- Hamilton GS KA Mark - Cal. 684 (hack) - Kenyan Army Issue
- Hamilton GS ADDF Mark - Cal. 684 (hack) - Abu Dabi Defence Force Issue?
The Tropicalized has some decent features for the time period:
- - Anti-Magnetic
- - Waterproof
- - Shock Proof
- - Dust cover
- - Temperature Compensated
- - 150oe (the magnetic shield reaches 150 Oersted 1oE = 79.577 amperes per meter.)
- - Hamilton S75S based on the ETA 2390, which experienced some improvements compared to its base:
- - Flector KIF shock protection
- - Stud support
- - Smooth return
Technical data
- cal :- Manual wind-
- Diameter of movement: 23.3 mm-
- Plant height: 3.6 mm-
- 17 jewels-
- F = 18.000 A / h-
- Power reserve 48h.
- Steel case with 6 point screw caseback
- Tritium dial and hands
- 36mm width ex crown
- 46mm lug to lug
- solid fixed lug strap pins
Links
Notable Watches
- Hamilton W10
- Hamilton GG-W-113
- Hamilton FAPD 5101
- Hamilton 600 Dual Crown Super-Compressor
- Buren Diver
- Hamilton Chrono-Matic
Credits - MWR
Other References
A 1966 Hamilton Watch Brochure has the following information - translated from French -
English Translation:
HAMILTON G.S. Watch
The famous General Service Watch is the official service watch of the Royal Air Force and is equipped with the standard movement of HAMILTON watches for men tested thousands of times. HAMILTON has won the competition of various famous Swiss and foreign watch-making brands during rigorous tests undertaken by the Royal Greenwich Observatory and during trials done in combat conditions.
31 75003-3 G.S. stainless steel, 17 jewels, waterproof, tropicalized, stop system, luminous dial.
