Description
A rare WW1 Birch & Gaydon, 153 Fenchurch Street, London, Mark II Reversing stop watch for Equal Distance Bomb Sight circa 1910-1920.
Height in Thousands of Feet, Ref. 176, Swiss. Case: 52mm.
Chronograph. Stainless steel case with white enamel dial and black letters and numbers, including a strap.
It works.