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A nice and rare stainless steel automatic centre seconds wristwatch with date and bracelet ref 666 ingenieur circa 1960.

Cal. 8531 automatic nickel lever movement, 21 jewels • silvered dial, baton indexes, baton hands, aperture for date, outer minute track, centre seconds • stainless steel case, screw-down case back • with a stainless steel IWC bracelet and folding clasp signed Gay Freres.

Manufacturer: IWC

Year: Circa 1960

Reference N°: 666-AD

Material: Stainless steel

Calibre: 8531 self-winding

Bracelet/Strap: Original stainless steel “Gay Freres” bracelet

Dimensions: 36,5mm. diameter

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