• 28 Apr 2020, 4:08 p.m.

    As some of you know, I am collecting pocketwatches, IWC only.

    Far from saying that my collection is a museum collection but I am proud to
    have found some nice and rare pieces over time.

    Some of the pocketwatches are common, easy to find on the market, sometimes in
    better condition than mine, but some I have are gems.

    So in these crazy times, as the museum in Schaffhausen is closed, why not open
    one here on the forum.

    As long as the museum is closed, I will post here daily a pocketwatch from my
    collection.

    I hope I don't run out of pieces before the virus is beaten. Fingers crossed
    for all of us.

    I will post them in a random order, with some comments, feel free to join.

    Keep safe all.

    DAY 38, cal 52 T

    A pocketwatch can be the source of a lot of info, there are on the dial and
    movement sometimes clues, hints to the provenance and the characteristics of
    that watch.

    Today another cal 52 in our virtual museum.

    It is not surprising that a collector has more than one cal 52 in a
    collection, it was for years the workhorse in the IWC pocketwatches.

    If you look into the books for the cal number, you see that this calibre is
    called 52T.

    The T stand for tirette ( from the French verb tirer ; to pull . In our
    Flemish dialect we use the word tirette for the zipper ) that means that this
    watch is set by pulling the crown, not a push set or lever set.

    We also see on the calibre H5, the H5 stands for the movement height of 5mm.

    There is more info to be seen on the calibre : you see the number 55231 ; In
    many IWC pocket watch movements produced after 1911, you see the patent No.
    55231 , this patent is a special method of securing the dial with spring clips
    instead of screws.

    On the dial, we see an unusual image of the brand name and the name Billian,
    Zurich. Billian was a big retailer early 20th century located in Zurich.

    The watch is from 1924 and the case is 14K gold.

    By looking into the forum archives, I found a forum member posting about his
    cal 52T, my cal number is 80649X, his is 80649X, a difference of two.

    But then when you see the case numbers, mine has case 91027X, his case 8947XX,
    a difference of more than 15000.

    When you look at the name of the company who entered the patent you notice the
    name " Uhrenfabrik von J.Rauschenbach's Erben vormals International Watch C°
    ", a name only used for a short period of time by IWC.

    Here is an example from this engraved on the inner cover of another
    pocketwatch I have from around 1907

  • Master
    28 Apr 2020, 4:09 p.m.

    Another really interesting post by Tonny today. Not only the the fact that the
    case of dial flaunted a name other then IWC / or alongside that of IWC of the
    then owners, but that the dial also carried a 3rd party name. Mostly, the
    pocket watches left Schaffhuasen with an International Watch Co. / IWC logo
    or a blank dial, and as Tonny 's example shows, a comnbintation of IWC and
    the
    3rd Party.

    Sometimes, they were just 3rd party names on the dial as in the example I
    showed earlier.

    Or in the case of Tonny's C.52 based watch above, its sister movement the C.53
    based Savonette timepiece which also bears the UHRENFABRIK VON J.
    RAUSCHENBACH name - this time on the dial too.

    The Watch

    The watch I want to share with you today to complement Tonny's Cal.52T is a
    calibre 52 as well - however a pin set version, as opposed to the Stem Set
    that Tonny shows.

    It's a handsome timepiece, and as you see in the photo above the blue steeled
    hands are trully magnificent. The dial carries the International Watch Company
    script logo.

    The similarites with the C.52T calibre in Tonny's watch are clear when
    compared to this C.52

    Now, there are two intersting things about this watch :

    1) This watch is younger than Tonny's C.52T and left the Schaffhausen
    manufactory on the 22nd February 1927 destined for the wholesaler Novotony in
    Prague - so in fact three years later! The question for our experts then
    arrises; _why was IWC selling again pocket watches with pin set movements
    years after they had improved the design of the C.52 to be stem set ? _

    2) The Case. Unlike Tonny's elaborate engraved inner case back (dust cover)
    this watch has NOT A SINGLE ENGRAVING on the outside of the dust lid, neither
    other than the case serial number, does it have any hallmarks or metal purity
    stamp. No, 0.800 or 0.900 that one would expect on the inner case back of a
    silver watch.

    Was this even a genuine IWC case? This needed more research.

    All That Glistens Is Not Gold

    So here's the thing. This watch is NOT SILVER !

    An inspection of the sales ledgers in Schaffhausen, required one to have a
    decent understanding of the French Language (see Adrians post below -
    regarding watchmakers from the Jura Valley the French speaking part of
    Switzerland).

    David Seyffer was able to find back the the following :

    [above courtesy of IWC Museum & Archives]

    Here one sees the words "Metal Blanc" - meaning White Metal. In this case
    the explantion of the lack of hallmarks, given the white metal here is Nickel
    and not being a precious metal, requires no hallmark.

    It sure is shiny.... glistens like gold, shines like a mirror below.

    As I said, all that glistens is not gold!

  • Master
    28 Apr 2020, 4:20 p.m.

    Lovely Watch Tonny. I am really fond of Cal 52 :o)

  • Master
    28 Apr 2020, 5:56 p.m.

    Nearly during a century IWC was owned and headed by two Swiss families
    Rauschenbach and Homberger. During the darkest days of IWC's existence, the
    Schaffhauser manufacturer of agriculture machines, Johannes Rauschenbach
    senior bought IWC, after the second failure when F.A.Jones and F.F.Seeland had
    left Schaffhausen. Without any doubt Rauschenbach senior can be called the
    savior of IWC. Unfortunately Rauschenbach senior was only in charge for a
    short period and after he had died, his son ( also Johannes) took over. Father
    and son were exellent entrepreneurs and although they had no experience in the
    watch manufacture and although they were completely isolated from the jura
    valley where the complete watch business had been settled, they managed to
    bring IWC among the best watch producers of Switzerland. All of this was done
    by a complete Swiss staff and watchmakers. They had to hire experts from the
    Jura region and succeeded to find and keep the best of them. By marriage the
    Rauschenbachs were linked on the Homberger family and here again first father
    Ernst-Jakob and later Hans-Ernst followed the same path for almost 75 years.

    Regards,

    Adrian,

    (alwaysiwc)

  • Master
    28 Apr 2020, 9:08 p.m.

    " It sure is shiny.... glistens like gold, shines like a mirror below. As
    I said, all that glistens is not gold!"

    What a lovely nickel piece MarkL

  • Insider
    29 Apr 2020, 2:22 p.m.

    Here is another special Lepine 52 T, built 1940 for the British army: Lep.
    c.52 T H6 S.C., a B´watch or better known as deck watch.

    The four digits on the enamel dial are the last four digits of the case and
    the movement number. On the back it is signed with H.S. 3 with an arrow
    between S. and 3. The whole numbers are 1014929. This watch has a "borgel"
    case, probably that was usual (like the c.71 S.C.)

    1400 watches of this were built in
    1940.
    were built in 1940


  • 29 Apr 2020, 4:56 p.m.

    Thank you for joining in and showing this very nice cal 52T S.C.

  • Master
    29 Apr 2020, 7:23 p.m.

    The story of the "T"-movements of IWC is quite complicated.

    IWC stated always the T is an unnecessary option. The danger to change the
    time unwillingly is too big with the tirette.

    The push button and the targette to set the time would be the correct 2 hand
    operation.

    Except few small series "T"- Models where not available for Pocket Watches.

    The start of wrist watches (an other "unusable" watch in the eyes of IWC in
    the early 19xx's) was done at IWC in the beginning with c.64 movements (with
    push button!).

    The first "real" wrist watch movement was the c.75/c.76, produced only with
    tirette, but not marked as "T".

    The lepine version c.75 was used for wristwatches without small seconds (I
    have never seen it in a pocket watch) an procuced only 3'300 times (between
    1915 and 1918).

    Of the Savonette version c.76 used in wristwatches with (or without) small
    seconds was produced totaly 19'200 pieces (between 1915 and 1929).

    Later there was also "T" version of the c.64, produced between 1917 and 1931
    about 12'000
    times.

    Of the c.64 existe an early serie "a Tir." of only 300 pieces built 1906.
    (most
    probably used in pocket watches)

    The pocket watch movements c.52 T was produce between (1924 and 1930) 6'600
    times; and then 1940 as "military" movement 1940 (1200 Pieces with center
    seconds, some for the BigFlieger ~1000 pieces with "Hack" seconds, the rest
    for the british navy without "hack"seconds).

    There is also a lot of the c.53T (only 300 pieces built 1927).

    Also the c.65 was built in a T versio (2400 pieces between 1927 and 1930)

    And the c.57 was built approx. 12'000 als T version between 1926 and 1930)

    There are no c.66 and c.58 als "T". Also the c.71/72 was never build as T, so
    the British Navy has IWC Deck watches with push button (c.71.S.C.) and without
    push botton
    version (c.52T.S.C).

    An other funny thing you can find in the c.73/74.

    The first approx. 3 series c73 (< 620'000) where produced as push button. Then
    the "A" or "B" version and also without indication (all > 620'000) are T
    -movements.

    For the c74 the targette was probably used longer. I think > 700'000 (there is
    one serie marked as "A" 735'701 ...) are "T" versions.

    then finally all PW c.67, c.95, c.97, c.98 and all wrist watch movements had
    the tirette but were never marked as "'T.

    The c.97 replaced the c.52 and c.57.

    Here a picture of the "pair" c.73/74 without "T" (out of the first serie of
    this movement)

    P.S.

    I was inacurate... checking my pictures I found an other serie c.53T. An early
    one 1907, probyly for the US-market, where the "T" time setting was standard
    quite early.

  • Master
    29 Apr 2020, 8:29 p.m.

    Thanks for this additionl information Ralph.

  • Master
    13 May 2020, 10:53 p.m.

    Cal IWC, the predecessor of cal 52, or so I've been told. It's a cal 52 after
    all. I was told wrong.

    How did an IWC PW sold to Sweden in 1885 end up with a dial with the images of
    the German Kaiser Wilhelm and the Austrian Emperor Joseph?

  • Master
    14 May 2020, 12:31 a.m.

    Never seen anything like that Antonio.

    Certainly, a very interesting watch.

  • Master
    14 May 2020, 5:33 p.m.

    Fits here as well.

  • 15 May 2020, 8:19 p.m.

    wonderful and special watches gentlemen, than you for showing them here. Like
    it a lot.