Rare Eterna Sonic Sevenday vintage electronic tuning fork watch produced between 1970-1975

Description

c-6600 needs a battery to operate
All watches are sold as-is Will need battery and or possible service
Features For the Eterna Sonic Sevenday Electronic Tuning fork Watch

Regulator is a tiny, vibrating metal tuning fork (usually 300Hz).
Second Hand Motion is a completely smooth, continuous sweeping motion
Sound is a constant, distinct humming noise .
Movement Family Built using the famous ESA 9164 movement licensed via Bulova.

Buyer's Premium

17.5%

Rare Eterna Sonic Sevenday vintage electronic tuning fork watch produced between 1970-1975

Lot 0097

Estimate $0-$0

Oct 4, 2026, 4:36 PM EDT

Current Price (9 bids)

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$130

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