GOLD ODERFLA WITH CHRONOGRAPH, 60S Three body unsigned tonneau 18K gold case, n. 107, slopped bezel, concave lugs, snap on back, Swiss hallmarks, rectangular pushers. Not original strap and buckle.
Silvered dial signed, painted triangular and Arabic indexes, minute track with 1/5th of second divisions, subsidiary dials with concentric engravings for seconds and 30-min register, blue tachymetric and red telemetric scales. Gilt alpha hands.
Manual winding movement, nickel-plated caliber Landeron 48, 17 jewels, metal dustcover, lever system for the chronograph, lever escapement, monometallic balance with screws, flat hairspring.
Diameter Ø: 37 mm 
Note: working, but a servicing is suggested.