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Longines ULTRA-QUARTZ, L6512

CHF 1,500


Very rare LONGINES Ref. 16 Ultra-Quartz wristwatch – The World First And Only Cybernetic Watch with unique movement Cal. 6512, based on the famous top-secret Project Hourglass, made circa 1970s. The Holy Grail of all electronic watch collections and the rarest of the lot.

The thing that makes this watch so unique is the large presence of discrete electronic components ( resistors, capacitors, transistors ) rather then a single integrated circuit ( IC ) and all of them appear to be randomly soldered together. The only Cybernetic movement ever made and instead of an IC it used separate micro sized electronic parts  – 14 transistors , 19 resistors and 7 capacitors have been shoe horned into this watch movement . Hardly any of these survive today.

Dimensions 41 x 40 mm including lugs.

Watch is in overall good condition, running and ready to wear or gift!


Brand Longines
Model Ultra-Quartz
Reference Ref. 16
Year Circa 1970s
Movement Cybernatic
Calibre 6512
Case material Stainless Steel
Case size 41 mm
Bracelet Nato
Features rare movement
Box/Papers no box, no papers


In fully working order. Good vintage condition, minor surface and crystal scratches through the age. No box, no papers.


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