Janne is right, it can be from WW II. However, Hanhart started to produce this chronograph in 1938 and this chrono is commonly known as the "single-button chronograph" and or "Hanhart monopusher". And indeed this chronograph was issued to pilots, as well as the Tutima chrono from 1941 on. They were mainly used by the "Kriegsmarine" (German Navy) that's why some of these watches have "K(riegs)M(arine) on the dial as well.

These Hanhart pilot's monopusher chronographs have been fitted with the cal. 40. They were available with bezel and without a bezel. The specific "gimmick" of this watch - if I may say so - is that only the chronograph functions "start/stop/reset" handled by the single button were required. This makes the "monopusher" a collector's item today.

The production of the pilot chronograph restarted in 1948, in the first instance just for the French army. After WW II, the Black Forest was part of the "French Occupation Zone", so Hanhart (and Stowa) had to fit in the WWII war reparations.
The French Army (ground troups) got app. 2500 watches starting from 1949. Two types have been delivered: Type 1: 15 jewels movement (No. 1 - 750), Type 2: 17 jewels movement (No. 751 to 2500). The "Vixa Type 20" made by Hanhart were used by the French Air Force, Stowa watches have been in use by the ground troups.

Lateron Hanhart chronographs have been officialy issued to the newly formed German "Bundeswehr". Unfortunately production continued only until 1962, when the decision was made to cease production of pilot's chronograph.

(C)WUS

Часы хорошие,денег стоят,будете продавать пишите.

Я бы тоже от таких не отказался.Часы дорогие, по цене-смотреть на состояние надо в живую. Ну и конечно гораздо дороже 300 баксов... Надумаете продавать- предложу хорошую цену.))

День добрый, готов предложить 3500$

Bingo
 

Продавайте, даже не думайте =)

Человек не продает,а предлагает ТС :D

да проданы они уже давно на форуме у Германа...конечно дороже 300 более чем в 3 раза, но и менее 3500 тоже в 3 раза ))