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You are bidding on a VERY RARE example of a WW2 Imperial Japanese Navy Seikosha Ship Chonometer / Deck Clock!  This was used on various Aircraft Carriers, Battleships, Destroyers, Cruisers, and other vessels! 


Full-sized marine chronometers, equipped with lever anchor and detent escapements (running for 56 hours), were mass-produced by the Japanese company Daini Seikosha during World War II.  The early versions featured the lever anchor escapement, and were completely made in Japan. 

They improved the quality shortly after the war began, by copying the Swiss Ulysse Nardin chronometer, and as a result, had a very high level of precision.  In total, only 600 were ever produced, with the rarer types (such as this one), only resulting in a few hundred. 

Very few Seikosha chronometers survived due to the almost total destruction of the Japanese Navy during World War II. 


Made of wood, brass, aluminum, and steel, this early Seikosha Ship Deck Clock is in EXCELLENT used condition!  It features a 12 hour display, along with a second hand.  Made by Seikosha, it is 100% functional, and features the wording, “Chonometer Seikosha”.  Dial indicates it features a 5-day movement.  Has a counter-clockwise wind at the rear, and retains much of it’s original paint and finish!  Has the lever anchor escapement.  Some wear to the dial as you can see in the photos. 

It comes complete in a wood box, however it is not the original box to the clock.  Sadly, the original was heavily damaged over time, so this one was custom-made to similar specifications to that of the original.  Comes with a winding key and locking key.  The box sits a bit taller than the original, so it will not fit in the original outer box that I have listed in another auction.  Like most Japanese items, it is a VERY RARE item, perfect for any collection, or display!


Please email me if you need additional photos or information.


——————- PAYMENT —————–

Payment should be made within 7 business days at the end of the auction unless buyer contacts me for other arrangements. I accept all forms of payment.


——————- SHIPPING —————–

My goal is to ship within 7 days from auction end. However, depending on circumstances, it may take up to an additional 1 week from receipt of confirmed payment. If you need it shipped sooner, please let me know and I will do our best to accommodate.


——————- TERMS OF SALE —————–

Most of my items are vintage, and as such are AS-IS, so you must therefore expect a degree of wear due to age and/or usage. I will describe each auction to the best of my knowledge and take as many photos necessary to ensure you are pleased upon receiving your item. All sales are final, so please make sure your questions are answered to your satisfaction before you purchase.


——————- ABOUT ME —————–

Although my passion is the Me109, I do offer many other German Aircraft (Fw190, Me262, etc.), as well as USAF and Japanese items. Occasionally I do offer many non-vintage items such as prints and art relating to the time period. As a private collector myself, I am constantly on the lookout for historical memorabilia, authentic photographs, artwork or anything unique relating to military aircraft.


——————- COPYRIGHT —————–

All pictures and descriptions used in my auctions under COPYRIGHT and I forbid the use of these photos and information in any manner such as paper or electronic (internet) publications or otherwise. Use is solely based on my authorization only.

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