GCT 24 hour dial Navigator pocket watch by Longines c1940

This pocket watch is made by the Swiss house Longines.

The watch has a 24 hour dial; the hands make one revolution every 24 hours and it also has the rare addition of a wind indicator function plus a hacking feature – so that when you set the hands the balance stops allowing you to synchronise your watch with others

G.C.T. watches were used for navigational purposes on military airplanes. The U.S. Army Corps typically ordered these timepieces from American watch manufacturers such as Hamilton, Elgin and Waltham. With increased demand due to World War II., Swiss companies like Agassiz and Longines also supplied similar precision timepieces. Although this watch does not have any military markings it was more than likely made for military use

Movement – the high quality nickel bridge movement has a lever escapement with a patent micrometer regulator, capped lever and escape wheel. The movement has a wheel positioned on the main bridge and this is for the centre seconds hand. The movement is signed “Longines Watch Co, Swiss, 21 Jewels, Adjusted to Temperature and 5 positions” # 6042890. The movement is in 95% mint condition – a superb example

Case – the movement comes in a stainless steel open face case, which has a hinged inner cover, back and snap on bezel. The inside of the back cover is signed “Longines Watch Co, Swiss” The side of the case has a large slide on the case for the hacking feature. The case has a smooth plain finish and is in 90% mint condition – a build up of light scratches on the back

Dial – the silvered dial is a true 24 hour dial where the hands made one revolution every 24 hours. The dial has a full set of blue steel hands including a sweep centre seconds hand. The dial has a power reserve function or wind indicator function under the 24. The dial is signed “Longines” and is in 95% mint condition

The watch has a mineral glass

The watch measures 53mm wide x 18mm deep

The watch is stem wound / stem set