Ref. 2487. Made in 1950’s Case three-body, polished and brushed, curved “propeller” lugs, snap on case back. Dial honeycomb with applied gilt baton, subsidiary dial for the seconds. Gilt arrow hands. Manual wind movement, straight line lever escapement, monometallic balance, blued steel Breguet balance spring, index regulator. Dial, case and movement signed. Diam. 35 mm. Thickness 10 mm.