1970s Eterna Sonic in 18K Case

Eterna Sonic, Electronic 18K Yellow Gold Tuningfork

CHF 2,500

Good / Very good condition 1970s Eterna Sonic in solid 18K yellowgold housing the Bulova derived tuning fork-movement. The movement was serviced and is in very good condition, and looking forward to make precise 300Hz tunes for the next 50 years.

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