Swiss chronograph Landeron??

Thread: Swiss chronograph Landeron??

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  1. #1
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    Swiss chronograph Landeron??

    Hi everyone,
    can anyone help me identifying the calibre of this chronograph?
    It has the # 61 under balance wheel.
    It looks like a landeron except for the fact I can not find any reference to such a movement by this brand.
    18K rose gold case.
    Many pics attached!
    Overall opinion about this timepiece also wellcome!!
    All the best!
    Attached Images Attached Images







    Attention!!
    Non english speaker.

  2. #2
    Member Eeeb's Avatar
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    Re: Swiss chronograph Landeron??

    According to Dr. Ranfft, Landeron made 3.5 million movements which were derivatives of the Landeron 48. This looks a lot like the Landeron 51 he pictures.

    Nice watch. Good clean dial. How does it run?
    "Forever is composed of nows." - Emily Dickinson

    "The watch has to be surrounded by a history.
    You need more than just a great design. You need to create an atmosphere around the product.
    Who is the company behind it? Why are they using this material?
    People need to be able to identify the watch with themselves. It's based on emotion." - Ralph Furter

    ...that's just my opinion and I've been wrong before and will be again and might be now!

  3. #3
    Member pacifichrono's Avatar
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    Re: Swiss chronograph Landeron??

    It looks like a Landeron 51.



    Landeron 51

    Features
    manual-wind chronograph, 60s, 30/45min, cam switched
    sub second

    Data
    13.75''', Dm= 31mm
    H= 6.2mm
    17 jewels
    f = 18000 A/h
    power reserve 42h

    Remarks
    1937-1970, >3.500.000 (al derivatives based omn Landeron 48)
    There were various chrono mechanisms. And as their parts often were interchangable, occasionally series were produced with parts of different calibres.
    minor differences between 51, 151, modified parts interchangable

    family:
    51, 151: 13.75'''
    55: 14'''
    57: 14''', calendar
    59: 13.75''', calendar
    80, 180: 13.75''', calendar, new pusher layout
    81, 181: 13.75''', calendar, moon phase
    159: 13.75''', date hand at 6h

    Example, year: signature; shock device
    ca. 1945: Bovet Freres & Co SA, Swiss, 17 Jewels
    Regards from Sunny San Diego..........Tom
    ____________________________________________________
    "There are two kinds of people in this world, my friend, those with loaded
    guns and those who dig!"................Blondie to Tuco in TGTB&TU (1966)


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  5. #4
    Member mrsnak's Avatar
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    Re: Swiss chronograph Landeron??

    Hmm.. looks very close to my Chronograph Suisse with a Landeron 47 in it.
    Just had mine overhauled. Love this watch.



    "My grail showed up today"

  6. #5
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    Re: Swiss chronograph Landeron??

    Hi Tom,

    good that I must read my typing errors now and then elsewhere
    (awsome two in one line). Otherwise they would remain forever.

    Regards, Roland Ranfft

  7. #6
    Member pacifichrono's Avatar
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    Re: Swiss chronograph Landeron??

    Quote Originally Posted by Roland Ranfft View Post
    Hi Tom,

    good that I must read my typing errors now and then elsewhere
    (awsome two in one line). Otherwise they would remain forever.

    Regards, Roland Ranfft
    Your site is such a treasure trove, issues like these are happily overlooked.
    Regards from Sunny San Diego..........Tom
    ____________________________________________________
    "There are two kinds of people in this world, my friend, those with loaded
    guns and those who dig!"................Blondie to Tuco in TGTB&TU (1966)


  8. #7
    Member mrsnak's Avatar
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    Re: Swiss chronograph Landeron??

    Quote Originally Posted by pacifichrono View Post
    Your site is such a treasure trove, issues like these are happily overlooked.
    +1 It's one of my most visited watch resources on the Internet!
    "My grail showed up today"

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