1929/30 Rolco center secs silver cased trench watch type.
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  1. #1
    Member radger's Avatar
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    1929/30 Rolco center secs silver cased trench watch type.

    I won this watch from Ebay a while ago, non working and newly surfaced from a house clearance.
    It is a Rolco which was a brand of the Rolex watch co.

    Courtesy of Mirius, it was found out that Balsom was the name of a Clockmaker/watchmaker who traded
    in the Town of Reading...http://www.flickr.com/photos/carrie1...1797/lightbox/



    The double hinged case is fully hallmarked for sterling silver being made in Switzerland and imported
    to the UK with an X for Edinburgh import mark and Y date letter for 1929/30.



    I just repaired and serviced this watch.
    It required a new mainspring and a chipped jewel was replaced to the third wheel dial plate.
    It now runs well and is a good timekeeper.

    Whilst servicing the watch I noted the mark BTCo on the dial side.



    The BTCo logo can be seen near the five o clock position, I wish I'd taken a better pic of just the logo but it's
    to late now as the watch is assembled.

    The O in Co is incorporated in the C on the top curve. I thought, at the time, that the watch movement would be an
    easy I.D but it seems not as I can find no info on a BTCo and I don't know this movement!!

    Can anyone Identify this movement? any info greatly appreciated, the movement is 25mm dia.

    Last edited by radger; July 8th, 2013 at 15:44. Reason: add link

  2. #2
    Member joeuk's Avatar
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Another center second trench watch great find and good work on bringing this back to life.
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  3. #3
    Member Marrick's Avatar
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Super.

    BTCo. could be Damas (Beguelin Tramelan) - see Genuine Swiss Watch Brands: February 2008

    Actually, the logo is a pretty good match. What have I won?
    Last edited by Marrick; July 8th, 2013 at 17:06.
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  5. #4
    Member HOROLOGIST007's Avatar
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Great Piece
    ROLCO was registered by Rolex 15 Sept 27

    FLUME 1972 edition has BTCo as DAMAS

    (page 12)
    radger likes this.
    NEVER ARGUE WITH AN IDIOT. FIRST THEY WILL DRAG YOU DOWN TO THEIR LEVEL. THEN, THEY WILL BEAT YOU WITH EXPERIENCE.

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  6. #5
    Member radger's Avatar
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Thanks guys, for the replies and info.

    Marrick, that's it Damas, well found, you win the 'Very Helpful Person' award.

    I could find no reference to BTCo on Mikrolisks excellent list.
    Looking up Damas on Ranffts brings no results for these movements either.
    Horologist, does Flume give a caliber designation for this 25mm movement?
    You would think that movements being used by Rolex would be more well known.

  7. #6
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Radger,

    You are on the right track with the Damas connection. The movement is a Beguelin 18, a 10 1/2 ligne sweeps second version of the sub-seconds Beguelin (Damas) 51 used in many Marconi, Unicorn and Rolco desigins.

    That's a sweet little watch. Love the dial.

    Cary
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  8. #7
    Member radger's Avatar
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Quote Originally Posted by C. Hurt View Post
    Radger,

    You are on the right track with the Damas connection. The movement is a Beguelin 18, a 10 1/2 ligne sweeps second version of the sub-seconds Beguelin (Damas) 51 used in many Marconi, Unicorn and Rolco desigins.

    That's a sweet little watch. Love the dial.

    Cary
    Thank you Cary.
    Following up the info gleaned from this thread, I now have a better understanding of the different and varied
    movements used in the early Rolex sub-brands.

    "That's a sweet little watch. Love the dial."

    Thanks, 'little' being the operative word, the watch is only 27mm dia across the case.

  9. #8
    Member HOROLOGIST007's Avatar
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Quote Originally Posted by radger View Post
    Thanks guys, for the replies and info.

    Marrick, that's it Damas, well found, you win the 'Very Helpful Person' award.


    Horologist, does Flume give a caliber designation for this 25mm movement?
    You would think that movements being used by Rolex would be more well known.
    I think yours is Caliber 512 10.5''' SCI(Caliber. w. indirect sweep seconds/seconde au centre indirect
    There is no picture of that caliber, but of others there is

    Hope that helps
    regards
    a
    radger likes this.
    NEVER ARGUE WITH AN IDIOT. FIRST THEY WILL DRAG YOU DOWN TO THEIR LEVEL. THEN, THEY WILL BEAT YOU WITH EXPERIENCE.

    "Failure is not an option" - Gene Kranz
    "Owning a vintage watch is great, understanding where it sits in Horology is magnificent"
    and
    "By Teaching Others, We Teach Ourselves"
    Adam

  10. #9
    Member radger's Avatar
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Quote Originally Posted by HOROLOGIST007 View Post
    I think yours is Caliber 512 10.5''' SCI(Caliber. w. indirect sweep seconds/seconde au centre indirect
    There is no picture of that caliber, but of others there is

    Hope that helps
    regards
    a
    Thank you Adam.

    I can find Unicorns and Marconis using the subsecs version of this movement, I've yet to come across
    another watch with the center secs movement though.
    I wonder why they are so uncommon, the centersecs versions were obviously available yet few people
    seem to have been buying them new... judging by their scarcity today.

  11. #10
    Member HOROLOGIST007's Avatar
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    Re: 1929/30 Rolco center secs silver cased trench watch type.

    Quote Originally Posted by radger View Post
    Thank you Adam.

    I can find Unicorns and Marconis using the subsecs version of this movement, I've yet to come across
    another watch with the center secs movement though.
    I wonder why they are so uncommon, the centersecs versions were obviously available yet few people
    seem to have been buying them new... judging by their scarcity today.
    Pleasure the FLUME books gives the specs (for replacement) of main parts, I can copy and send you it if you want.

    Yes very, very rare indeed, actually Its made me really think how strange, as most pocket watches had sweep sconds but so few early wristwatches.

    Its a lovely piece.
    Regards
    radger likes this.
    NEVER ARGUE WITH AN IDIOT. FIRST THEY WILL DRAG YOU DOWN TO THEIR LEVEL. THEN, THEY WILL BEAT YOU WITH EXPERIENCE.

    "Failure is not an option" - Gene Kranz
    "Owning a vintage watch is great, understanding where it sits in Horology is magnificent"
    and
    "By Teaching Others, We Teach Ourselves"
    Adam

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