UNIVERSAL GENÈVE POLEROUTER BROAD ARROW REF. 20217, GENERAL ELECTRIC TROPHY PARIS 1957, ANNI ’50

UNIVERSAL GENÈVE POLEROUTER BROAD ARROW REF. 20217, GENERAL ELECTRIC TROPHY PARIS 1957, 50S
Two-body tonneau stainless steel case, signed, slopped bezel, faceted lugs, screwed caseback engraved “G.E. Trophy Paris - Paris 1957". Not original strap and buckle.
Black dial, minutes divisions with crosshatch, applied logo, reeded and luminescent hour ring with relief indexes. Luminescent broad arrow hands, centered seconds.
Self-winding bumper movement, nickel-plated caliber 138SS, signed, 17 jewels, lever escapement, monometallic balance with screws, flat hairspring, Incabloc shock-absorber.
Diameter Ø: 35 mm
Note: working.