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Thread: Case Back Marking Help?

  1. #1
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    Default Case Back Marking Help?

    Can anyone tell me what this case back marking stand for? Thanks for the help.

    [IMG][/IMG]

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    Senior Member river rat's Avatar
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    From a book I have looks like Fleet Air Arm pilot's wristwatch

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    Quote Originally Posted by river rat View Post
    From a book I have looks like Fleet Air Arm pilot's wristwatch
    +1 on Fleet Air Arm pilot's wristwatch.

    Eric, H.S. stand for the Hydrographic Service who previously handled (tested, serviced) the issued watches of the Admiralty (Royal Navy) at least, (and maybe the entire MOD? but not too sure on this latter part).

    Here's some references online:

    http://german242.com/books/military_...e_markings.pdf

    http://ihc185.infopop.cc/eve/forums/...4/m/7933941467

    "H.S.1 : Chronometer watch with detent escapement
    H.S.2 : Chronometer watch adjusted for isochronism in five positions
    H.S.3 : Deck watch adjusted for isochronism in a minimum of two positions
    H.S.4 : Fleet Air Arm instrument panel watch
    H.S.5 : Survey boat pocket watch
    H.S.6 : Ship's chronometer with gimballed movement
    H.S.7 : Watch calibrated for sidereal time (?)
    H.S.8 : Fleet Air Arm pilot's wristwatch
    H.S.9 : Chronograph wristwatch
    H.S.10 : Diver's wristwatch
    H.S.11 : Standard issue wristwatch"

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    Note that it appears to be acid etched (and looks correct). I think "HS" was specifically "Hydrographic Supplies".

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    Super Moderator dave's Avatar
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    Quote Originally Posted by rodabod View Post
    Note that it appears to be acid etched (and looks correct). I think "HS" was specifically "Hydrographic Supplies".
    +1

    the HS abbreviation may stand for Hydrographic Supplies in this instance -





    however consideration should also be given to -

    Hydrographic Service / Hydrographic Standard / Hydrographic Survey


    Wrist Watches Pattern H.S.8 was supplied to FAA Pilots and Observers circa 1944 onwards.

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    H.S.8.. are they basically the same as the AM Mk VII's? or 6B/159's?

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    Quote Originally Posted by Reintitan View Post
    +1 on Fleet Air Arm pilot's wristwatch.

    Eric, H.S. stand for the Hydrographic Service who previously handled (tested, serviced) the issued watches of the Admiralty (Royal Navy) at least, (and maybe the entire MOD? but not too sure on this latter part).

    Here's some references online:

    http://german242.com/books/military_...e_markings.pdf

    http://ihc185.infopop.cc/eve/forums/...4/m/7933941467

    "H.S.1 : Chronometer watch with detent escapement
    H.S.2 : Chronometer watch adjusted for isochronism in five positions
    H.S.3 : Deck watch adjusted for isochronism in a minimum of two positions
    H.S.4 : Fleet Air Arm instrument panel watch
    H.S.5 : Survey boat pocket watch
    H.S.6 : Ship's chronometer with gimballed movement
    H.S.7 : Watch calibrated for sidereal time (?)
    H.S.8 : Fleet Air Arm pilot's wristwatch
    H.S.9 : Chronograph wristwatch
    H.S.10 : Diver's wristwatch
    H.S.11 : Standard issue wristwatch"
    Thanks for the information Gerard. When are coming back to the P.I.?

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    Member Kiwi's Avatar
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    The caseback markings shown in the OP belong on a Cyma HS8, which is contemporary with and identical to the 1942 Cyma 6B/159. Marks inside the caseback will confirm this.

    To answer geo7863's question, the Cyma and later Omega HS8 were the same watch as issued by the RAF as 6B/159s.

    Regards
    Kiwi

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