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Dueber watch case hallmarks
Dueber watch case hallmarks















  • The accuracy of the daily rate, at a temperature of 18 - 22 degrees C within 1 minute (during the period of validity of GOST 918-41), +/- 30 sec.
  • The number of adjusting screws on the balance wheel - 16 (since 1946), 10 (since 1948).
  • Movement on 15 ruby jewels, brass anchor fork (1946-1948) and steel anchor fork (1949-1954).
  • The modifications differ in the design of the balance assembly and the type of the pendulum spring spiral: in the movements of the first modification there is the Breguet spiral, in the movements of the second modification there is the usual spiral.īRIEF CHARACTERISTIC OF THE K-36 MOVEMENT: The first modification was produced from the 4th quarter of 1946 to the 1st quarter of 1947, the second modification - from the 2nd quarter of 1947 to 1954.

    #Dueber watch case hallmarks series#

    Interesting fact: the Cortébert calibers 618, slightly differing from the 620 series in height and configuration, were originally supplied to Rolex, and through it as a contractor in 1930-1950 they were also supplied to the Italian Panerai (to fulfill orders of the Italian Navy).įrom a constructive point of view, there were two modifications of the Salut watch movement. From a comparison made by Sergey Ivanov in the aforementioned article, it can be seen that the design and geometry of the Cortébert 620 are fully retained in the 1947 K-36 movement. There is an opinion that it was the Cortébert 616, but the height of the K-36 corresponds exactly to the Cortébert 620, not the 616. The prototype of the K-36 movement, which was installed in the Salut watches, was the Cortébert 620 movement. Here is an excerpt from the report of the People's Commissar of Mortar Armament (the production of watches then belonged to this commissariat) Pyotr Ivanovich Parshin to the deputy chairman of the Council of People's Commissars L.P.

    dueber watch case hallmarks

    Archival documents give an idea of the problems that arose during the preparation of production due to the post-war shortage of resources. The first pieces of the movements were made at the 2nd Moscow Watch Factory already in November 1945. This, most likely, explains the choice of the name for the Moscow part of the K-36 project. And it was in the spring of 1945 that the decision was made to produce new pocket watches at the 2nd Moscow Watch Factory. Especially often (for obvious reasons) salutes thundered over Moscow in the spring of 1945. In 1943-45 salutes were fired quite often - a total of 26 1st degree salutes, 206 second and 122 third degree were given. Almost all salutes were fired in Moscow, with one exception: the 1st degree salute on Januin honor of the lifting of the blockade was made in Leningrad. Remember, the sizes below refer to the movement size.The name Salut is associated with the tradition of military salutes in honor of victories revived during the Great Patriotic War (you can read more about the fireworks of the Great Patriotic War here - Russian language, but you can use Google translate). You will notice from the chart below that pocket watches are typically measured in 30ths of an inch, also known as the “Lancashire Gauge” adopted from England. This chart converts American pocket watch sizes from inches to millimeters. These measurements are not related to the size of the case or dial. Some dealers and enthusiasts might type these sizes differently. Similarly, you may also see something like 7J for jewels.

    dueber watch case hallmarks

    This S is usually added to the number so that you know it’s a size number rather than a jewel count. For example 18 is the same as 18S, and also the same as 18-Size. The S next to the number just means “Size”. Early on, railroad pocket watches were allowed to be 18s or 16s, but eventually were required to be 16s. Pocket watches come in all different sizes, but the most common will be 18s, 16s and 12s for men, or 0s, 6s and 8s for ladies pocket watches. The case diameter is good for knowing how big the pocket watch is overall, if it will fit in your vest or watch pocket for example, but it is not relevant to the chart above. A pocket watch can have various case sizes depending on the style and design. It’s important to know that a pocket watch size has nothing to do with the outside case diameter.

    dueber watch case hallmarks dueber watch case hallmarks

    Since the dial often extends beyond the movement, it’s not an accurate way of measuring the size of your pocket watch, however, with a well-trained eye it might be close enough to guess. To get the most precise pocket watch measurement, you will want to measure the movement’s lower plate below the dial.















    Dueber watch case hallmarks