Vintage Rodana Bidynator Bumper 17j Watch
Updated September 15, 2026
| Lot number | 165 |
| Auction | Vintage watches Omega,Bulova,Hamilton and more |
| Date | September 30, 2026 at 5:00 PM CDT |
| Auction house | Sphere Auctions LLC |
| Location | Sun 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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