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  Marine Chronometers and Deck Watches

To be Put to Auction Oct 23 and Oct 24, 2010

Auction Location: Radisson Hotel Manchester  700 Elm St, Manchester NH 03101

The entire catalog will be posted by the end of September. Click on the photo thumbnails below to make them bigger.

• Hamilton model 22 21J winding indicator with "US Navy-Bu Ships-1942" plate marking, 35S, inner and outer boxes with tags for Southwest Instrument Company, San Pedro, CA, in original locking bronze gimbals with weighted screw-back and screwed bezel, SW-SS with safety pin to release setting (depress pin to be able to pull out stem), original silvered dial, fully capped lever escapement with AMAC solid monometallic balance & Elinvar class HS system, plain parallel pattern NI damascene, s#2F27895; with two note cards in bottom of outer box having extensive pencil notes on both sides rating the instrument over many days and showing little daily or cumulative variation in rate ,   Estimate: $1,200 - $1,800
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• Hamilton model 22 21J winding indicator with "US Navy-Bu Ships-1943" plate marking, 35S, original rhodium-plated base metal SB&B case with snap-cuvette, military contract markings on back, matching inner and outer dark mahogany boxes, SW-SS with safety pin to release setting (depress pin to be able to pull out stem), original silvered dial, fully capped lever escapement with AMAC solid monometallic balance & Elinvar class HS system, plain parallel pattern NI damascene, s#2F23587 ,   Estimate: $800 - $1,200
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• Hamilton WWI vintage model 36 21J winding indicator, 36S, with original period fitted inner and outer plain mahogany deck watch boxes, the outer held shut by the strap only, in original sterling silver pocket watch style HB&B Crescent case, SW-pin set, original silvered impressed DSD, fully capped lever escapement with double roller, bimetallic balance with extended overhang (as in original Guillaume or most Lange balances), Phillips overcoil, GJS including unjeweled motor barrel arbor, plain parallel pattern NI damascene, s#1260381; the change in typical Hamilton balance form reduces centrifugal error at the very least; it is unknown if the balance has further features that might have constituted an American response to the Guillaume compound balance well known and extensively implemented in Europe by the date of manufacture of this timepiece around 1915 ,   Estimate: $3,500 - $4,500
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• Hamilton model 21 fusee with spring detent chronometer escapement, 85S, original inner dark red mahogany stained box with full brass banding, corners, handles and central tongue-in-groove seal, lighter mahogany stained outer box with leather strapping, the mvt in original locking bronze gimbals with weighted screw-back and screwed bezel, KWKS, balance lock for hacking or shipping located next to winding hole, operated by allen wrench (full turn clockwise to lock, signed "1/16 Allen USA" wrench loose in bottom of inner box), original silvered dial, fully capped spring detent escapement with giant AMAC solid monometallic weighted chronometer balance & free-sprung Elinvar class helical HS system, plain parallel pattern NI damascene, s#2E3984; a paper inside the cover reads, "This is a genuine Hamilton Marine Chronometer - It is one of the world's most accurate timepieces and has passed the most exacting tests of the famed US Naval Observatory. It is identical with those used (often in groups of 3) on practically all ships of the US Navy...including the largest battleships and carriers. On shipboard it is the master time source which is absolutely essential to accurate navigation. - Before World War II, Marine Chronometers were made abroad because world requirements were too limited to justify the cost of "tooling up" for manufacture by America's modern mass production methods. - When European sources were cut off by invading armies, America had to find a source for vast quantities of these important instruments...and in a hurry. The Hamilton Watch Company...for more than half a century America's only manufacturer of high grade timepieces exclusively...took on the assignment and made them faster, better and in larger quantities thatn had ever been made before." ,   Estimate: $1,500 - $2,000
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