【Features】 This is a Girard-Perregaux military watch from the 1940s-50s. It has a black dial with a small seconds hand and is hand-wound. The dial faintly glows in the dark, so it is likely treated with tritium. Although it has a broad arrow, formal delivery to the British military could not be confirmed, so it may be a military watch from another country. Considering the historical background, the German military is a strong possibility. Girard-Perregaux also made the world's first military watch (see the last image), so I think this watch is very rare and has historical romance. The dial construction is very similar to that watch. I am not familiar with the caliber, but upon inspection, it is a 17-jewel hand-wound movement, and along with the case back, it is equivalent to a 1940s Sea Hawk. It may be from the 40s. Currently, it runs when hand-wound, but it stops working after a while, so I recommend an overhaul. Please purchase with the assumption that an overhaul is needed. 【Size】 Face diameter: 33mm