Imperial Japanese Navy Flight Watch WWII Era Antique from Japan Working

  

Imperial Japanese Navy Flight Watch WWII Era Antique from Japan Working. =>January 2018 [OH] Disassembled and cleaned. It works with an error of about 3 minutes when laid flat for 24 hours. "It's still working fine".

Case diameter is 51.9mm (excluding crown), thickness is about 14.6mm. No hand winding or hacking function.

Made of glass, [KK] engraved on the inside of the glass. The engraving "Second Clock Type 1 B" on the back of the case has been scraped off with a sharp blade-like object. In addition to "Second Clock Type 1 B", there is an engraving of No. On the inside of the back cover, you can see the engraving of an anchor representing the navy, "T in a circle", "SKS" and "79411".

Considering that it was used during wartime. I think it falls into the category of beautiful individual pieces. As it is an antique, please be careful of water and sweat.

Overall, the condition is good (although there are individual differences). At the time, the military ordered Seikosha to make an elaborate chronograph, and this is the only chronograph made in Japan. It was probably developed because a stopwatch function was needed to measure the time until a shell hit the ground. Air Force Air Corps military pocket chronograph. Commonly known as a carafe, this pocket watch was delivered to the military by Seikosha during the war and used by soldiers.

The bow area is made sturdy, which is a distinctive feature of its appearance. It was delivered directly to the military by Seikosha, so there are no catalogs or anything like that. It is a valuable watch that is also valuable as a historical document. The disadvantage of a pocket watch is that it is heavier than a wristwatch and there is a risk that the balance will break if dropped.