Vintage Rodana Bidynator Bumper 17j Watch

Updated September 15, 2026

Lot number165
AuctionVintage watches Omega,Bulova,Hamilton and more
DateSeptember 30, 2026 at 5:00 PM CDT
Auction houseSphere Auctions LLC
LocationSun Prairie, Wisconsin

Vintage men's Rodana Bidynator bumper automatic wristwatch with a beige dial, Arabic numerals, and a red sweep seconds hand. The dial is signed Rodana. The case back is stamped Automatic, Estanco, Antimagnetic, Stainless Steel, "4002 H," Shock Absorber, Waterproof, with the inner case cap stamped Rodana Watch Co, Swiss Made, Brev. Dem. The movement is signed Seventeen (17) Jewels, Unadjusted Swiss, Bidynator Patented, Rodana Watch Co, with the visible half-moon bumper oscillating weight. Fitted with a brown leather strap; case measures approximately 30.2mm. This watch is running as of the time of listing but is currently overwound. Service is recommended before further winding, and runtime and accuracy are not guaranteed.

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