Paul Stübner Glashütte i. SA, Movement No. 814, 195 mm, circa 1930
An extremely rare beacon contact device clock for use on lightships, with 8 day power reserve - a modern stand of wood and brass with mirror Case: Brass case, glazed on both sides. Dial: silvered. Movm.: brass movement, contact devices, applied echappement, chronometer screw balance.
The movement with an 8 day power reserve has been constructed very accurately. If the hands are to be set, the motion work is disconnected from the clockwork mechanism and a special mechanism advances the hands; on no account must the hands be turned back as this would damage the contacts. This process stops when the setting pusher on the outer metal case is no longer pressed. All parts are well designed, the movement plates are varnished; the stones are chatoned and screwed into the movement. The perfectly constructed contact mechanism is driven by the movement; the cam plates regulate the contact sequence and the levers - the position of the lever determines whether the contact is open or closed. The contact can be adjusted by a screw. To ensure the contact mechanism's reliability and durability, all levers have stones wherever they touch the cam plates. Small mainsprings ensure that the articulated levers are pulled to the cam plates evenly. The large compensation balance for the lever escapement is easily visible.
Captain Karl Moos: "Clocks of this kind were used on lightships before World War II, and the contacts were set in such a way that they created the morse "E" and "L" as light signals. He himself had seen these clocks in his youth on the lightships - on the old "Elbe 1 Buergermeister Oswald" and the "Norderney" which capsized in 1936 - but with dials with Arabic numerals. He served as captain on the Elbe 1 for many years after the war, when modern contact mechanisms were in use. The Stuebner watch is the oldest design of the German beacon clocks, which were used for many years with great success and a high reliability."
Lit.: Kurt Herkner "Glashuette und seine Uhren" (Glasshuette and its watches), 1st Edition 1978, Herkner publishing, page 82
Estimate 3,800 - 5,000 €
Price Realised 5,300 €
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