Find your vintage Glycine watch age and models including their caliber
Glycine manufactured its own movements from 1914 until it has been acquired by ASUAG in 1942. The company was also sourcing movements for other brands so as A.LeCoultre ( Cal 18 ) and Bulova (cal 50 ). Below is a chart from 1942 showing the manufacture movements along with the automatic module of Eugene Meylan.
Even though the ASUAG movements started to dominate the whole manufacture some models from the '50s and '60s still have the in-house calibers. I believe they were stock movements or still being produced within ASUAG. Glycine serial numbers changed within years.
Airman had its own numbering system within Glycine watches. Glycine serial numbers have changed several times and is not consecutive through ownership changes. Vintage Glycine Airman manufacture years though can be determined by these serial numbers. Some decades have two different numbering systems running simultaneously. We are able to date most timepieces after 1952 accurately, however pre - '50s is a bit of educated guess with vintage watch collectors knowledge. Thankfully we have some marks and rules applying to help us dating earlier timepieces so as: poincon de maitre type, dial marks, hallmarks of precious metal, case-makers mark, government regulations for imported/exported timepieces and related dial & movement marks...
How to date your vintage Glycine Airman watch:
Check first below 6 components in your watch, if they are in the right timeline, than see the chart for specs and manufacture year.
Pencil or dauphine hands: 1953 & 54
Tail-end at minute hand: Mar 1955 to 1956
Tail-end at hour hand: 1957 till 2020
Screw-in case-back: 1953 - 1964
EPSA Compressor pop-off style case-back: 1964 -1972
SST Boeing 2707 Engraving: 1967- 1972
Plain main crown: 1953 -1964
Cross hatched main crown: 1964 - 1972
SST cross hatched GMT ring crown: 1967
SST slotted GMT ring crown: 1968 and later ( Airman SST first run had cross hatched GMT ring crowns, but due to feedback from users that the crown damages shirt sleeves or turn accidentally, it has been switched to slotted crown where one should use his nails or coin edge to turn it )
AS 1700/01: 1964 - 1967
AS 1902/03: 1967 -1972
AS 2063: 1968-1972
Valjoux 72(x): 1969
Landeron 18(x): 1969-1971
Valjoux 773(x): 1969-1971
AS 2163: 1971-72 ( hacking movement, replaced with dial at service centers )
FHF and ETA quartz movements: 1978 and later
No hacking: 1953 to March '55
Mechanical Hacking pin at 24 o'clock: 1955 Mar - 1972
No hacking pin: 1971-72 w/ AS 2163 movement
23 Jewels mark: pre 1958
Crown logo: 1967 and later
Date window magnifier: 1955 and later
Special mark in italic 1964 and later
SST: 1967 and later
AOPA & Rotary: 1956-1957
Triangle 12 and 24h o' clock markers: 1955-64
Straight line 12 and 24h o' clock markers: 1964-1972
Glycine Watches SA was manufacturing its own movements until being acquired by ASUAG in 1942
In 1966 some Glycine movements still are being manufactured within ASUAG while some other La Glycine ( LG ) marked movements have other base calibers like Felsa, Eta, FHF...
Glycintennial, Vintage Glycine Watches
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