Hamilton Model 22 Serial Number Query

Discussion in 'Chronometers' started by Steven Barnett, Oct 20, 2011.

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  1. Steven Barnett

    Steven Barnett Registered User

    Oct 20, 2011
    37
    0
    0
    SF Bay Area, USA
    Country Flag:
    Region Flag:
    Greetings:

    Can anyone tell me the approximate date of manufacture on Hamilton Model 22 chronometer watch serial number 2F8122?

    THX - Steve
     
  2. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
    14,364
    47
    48
    Calgary, Alberta
    Country Flag:
    Region Flag:
    Welcome,

    I Marvin Whitney's book on the marine chronometer, he indicates that in 1941, Hamilton delivered 2,864 gimballed chronometers, and in 1942 they delivered 5,667 of them. I suspect yours is from 1942, possibly 1943. I was unable to pin down the date specifically by searching the Hamilton data base.
     
  3. Steven Barnett

    Steven Barnett Registered User

    Oct 20, 2011
    37
    0
    0
    SF Bay Area, USA
    Country Flag:
    Region Flag:
    Thank you sir!

    I just acquired this piece, complete with outer box and shipping container. It’s in remarkably good shape, with a Navy overhaul required tag dated 1978. Must have been in service for a long time!

    Cheers - Steve
     
  4. Rhett Lucke

    Rhett Lucke Board Secretary
    Director NAWCC Member

    Feb 18, 2001
    1,805
    364
    83
    Country Flag:
    From the ledgers, your M22 was finished and shipped in November 1943.
     
  5. Steven Barnett

    Steven Barnett Registered User

    Oct 20, 2011
    37
    0
    0
    SF Bay Area, USA
    Country Flag:
    Region Flag:
    Thank you - as a follow up, does anyone know of source for an appropriate replacement main spring? Since I have no idea when the watch was last serviced, I plan of doing one myself. I'd love to put a new mainspring in just on GPs.
     
  6. hjpetsch

    hjpetsch New Member

    Jan 28, 2012
    3
    0
    0
    any information about s/n 2F8131 welcome

    Hans.
     
  7. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
    14,364
    47
    48
    Calgary, Alberta
    Country Flag:
    Region Flag:
    #7 doug sinclair, Jan 29, 2012
    Last edited: Jan 29, 2012
    Welcome,

    Your chronometer serial number is 9 digits after that of the subject chronometer. A check of the Hamilton ledger page indicates it was finished on July 15, 1943, several months after the subject chronometer was finished. The rest of the entry for your chronometer in the ledger has been edited, scribbled out, then over-written so many times it is not possible to make any sense of the entry. What other information might you be seeking?
     
  8. hjpetsch

    hjpetsch New Member

    Jan 28, 2012
    3
    0
    0
    Thanks, Doug, this is already very valuable information for me.
    I just obtained the clock in Madrid, Spain.
    I do not think, you would be able to track it to a specific ship, though.


    About the serial numbering system: does 2F.... meaning anything?

    But thanks a lot!
    Hans.
     
  9. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
    14,364
    47
    48
    Calgary, Alberta
    Country Flag:
    Region Flag:
    In issue # 300, NAWCC Bulletin publication, page 110, the foremost authority on Hamilton military timepieces, the late Marvin Whitney, indicates the number and letter prefix to the unit serial number was Hamilton's way of identifying the model or grade of a particular watch or chronometer. This seemingly started with the Hamilton 992B circa 1941. 2F xxxx signifies a model 22, either boxed chronometer or chronometer watch.
     
  10. hjpetsch

    hjpetsch New Member

    Jan 28, 2012
    3
    0
    0
    ... thanks again!
    By the way: I am in possession of Marvin E. Whiney's work "The Ship's Chronometer", serialized as No. 92 and hand signed by the author.

    Hans.
     
  11. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
    14,364
    47
    48
    Calgary, Alberta
    Country Flag:
    Region Flag:
    I have it as well. Mine is # 224. Also signed by Marvin.
     
  12. DaveyG

    DaveyG Registered User

    Mar 21, 2005
    2,429
    81
    48
    Male
    North Wales, UK
    Country Flag:
    Can I suggest that you pay a visit to:

    www.militarywatchmuseum.com

    where I think that you will find a lot of valuable information and a source of parts.
     
  13. birdyxxx

    birdyxxx New Member

    Dec 7, 2013
    4
    0
    0
    I also just acquired a gimbal mounted model 22, and hopefully someone here can shed some light on the serial number....2F7706
     
  14. terry hall

    terry hall Registered User
    NAWCC Brass Member

    Apr 12, 2001
    6,896
    235
    63
    Male
    Central North Carolina
    Country Flag:
    Region Flag:
    Finished and sold 8/26/1943 to code# 64-10329 we have not cracked the code for sold to.... yet.

    no information on how it was originally configured. .with gimbal, cased in wooden box... etc...
    total production listed @ just over 28,000 movements.
     
  15. birdyxxx

    birdyxxx New Member

    Dec 7, 2013
    4
    0
    0
    #15 birdyxxx, Sep 20, 2016
    Last edited: Sep 20, 2016
    Thank you! The chapter ring, case, and caseback all have matching numbers (6165). The chapter ring is labeled with the US Navy "overhaul due" tag, marked serial number 6165, and "1957" is the date of the next overhaul required. It is cased in the hinged box, however I am missing the larger outer case with the handles on the sides. If you or anyone cracks the code to find out where my 22 spent its service time, let me know!
     
  16. Dave Coatsworth

    Dave Coatsworth Forums Administrator
    NAWCC Business Sponsor

    Feb 11, 2005
    6,066
    1,031
    113
    Camarillo, CA
    Country Flag:
    Region Flag:
    Moving thread to the Chronometer section.
     
  17. jxmos

    jxmos Registered User

    Sep 5, 2010
    9
    0
    0
    Country Flag:
    Would anyone know the manufacture date of a Hamilton Model 22 with serial number 2F29675? It seems rather late in production compared to other SNs I've seen. Thank you in advance!
     
  18. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
    14,364
    47
    48
    Calgary, Alberta
    Country Flag:
    Region Flag:
    A check of the Hamilton S# list on the NAWCC Hamilton records returned no information on Hamilton model 22, S# 29675. That could be because the data base says the last model 22 produced was S# 2F28400. That was in 1946. You could be reading the S# correctly, but just in case, could you check it again?
     
  19. Tom McIntyre

    Tom McIntyre Technical Admin
    Staff Member NAWCC Star Fellow NAWCC Ruby Member Sponsor

    Aug 24, 2000
    81,711
    1,280
    176
    Male
    retired SW dev
    Boston
    Country Flag:
    Region Flag:
    The end point of the records the NAWCC has is several years before Hamilton stopped producing timepieces in PA. We do have job cards and it is possible those or some other records may identify the later items.
     
  20. jxmos

    jxmos Registered User

    Sep 5, 2010
    9
    0
    0
    Country Flag:
    Thanks gentlemen! Here's a photo of the movement for validation of the SN.

    IMG_1312a.JPG

    The watch came with a wooden box and a timing test document from the Southwest Instrument Co in San Pedro. Marine Chronometer dept is stamped in red on the doc. There are no navel related marks on the case only on the movement.
     
  21. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
    14,364
    47
    48
    Calgary, Alberta
    Country Flag:
    Region Flag:
    The most comprehensive and reliable source of Hamilton records that I know of, exists at the NAWCC library, and on line. These records for the model 22 end at 1948, and the serial numbers stop before your 2F29675, unfortunately. Your chronometer may be listed elsewhere, but I think we'll have to rely on someone else to pull up this S#.
     
  22. jxmos

    jxmos Registered User

    Sep 5, 2010
    9
    0
    0
    Country Flag:
    Thank you Doug!
     
  23. TomTom98

    TomTom98 New Member

    Apr 4, 2019
    2
    0
    1
    Male
    Country Flag:
    Hi all,

    I have Model 22 serial # 12448, can anyone tell me date of manufacture, which ship the piece served on? Any info much appreciated.

    Tom
     
  24. Tom McIntyre

    Tom McIntyre Technical Admin
    Staff Member NAWCC Star Fellow NAWCC Ruby Member Sponsor

    Aug 24, 2000
    81,711
    1,280
    176
    Male
    retired SW dev
    Boston
    Country Flag:
    Region Flag:
    It was sold on 12/29/43 but was returned and sold on 2/4/44 but returned and sold on 3/2/44.

    A double page of the ledgers holds 100 items and this page pair shows 18 pieces that took more than one pass to get into service.
     
  25. TomTom98

    TomTom98 New Member

    Apr 4, 2019
    2
    0
    1
    Male
    Country Flag:
    Thanks very much Tom, 12/29 happens to be my birthday, so interesting coincidence.

    Cheers,

    Tom
     

Share This Page