Mint Solid 9ct Yellow Gold Zenith 1960s Gents Manual Wind Watch – Cal. 2531 – S. Sackman & Sons Case – Full Set with Box & Papers Star Logo

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A superb example of 1960s Swiss horology, this Zenith manual-wind wristwatch features a solid 9-carat yellow gold case made by S. Sackman & Sons of London — one of the most respected English case makers of the era.

Powered by the Zenith Calibre 2531, a beautifully finished in-house movement, this elegant vintage dress watch comes as a full collector’s set with its original mint box and papers — a true rarity for Zenith pieces of this period.

Key Features

Case & Hallmarks

• Solid 9ct yellow gold case 

• Manufactured by S. Sackman & Sons, London — official case supplier for Zenith’s UK-distributed gold models

• Fully hallmarked inside caseback:

• “S&S” maker’s mark (S. Sackman & Sons)

• “9 . 375” gold purity stamp

• London Assay Office hallmark

• Classic slim profile with polished bezel and elegantly curved lugs

• Case diameter approximately 35mm including Crown

• Original snap-back case in excellent condition with crisp markings

Movement – Zenith Calibre 2531

• Swiss-made manual wind movement, entirely in-house by Zenith

• Calibre 2531, 17 jewels, high-grade construction

• Features Incabloc shock protection and fine regulator index

• Decorated with Geneva stripes and perlage finishing

• Smooth winding and strong amplitude; keeps accurate time

• All engravings (“Zenith,” calibre number, and Swiss markings) present and sharp

Dial & Hands

• Original Gold Sunburst Dial

• Applied gold Arabic  hour markers with matching Stick-style hands

• Sub-seconds dial neatly positioned at 6 o’clock

• Original acrylic crystal, clear and free from major scratches

• Elegant minimalist 1960s styling — timeless and refined

Strap & Accessories

Stock leather strap and gold-tone Original Zenith Stock buckle

• Supplied with:

Original Zenith box (mint condition)

Original warranty papers & booklet

 Full Set Includes

• Original Zenith presentation box (inner & outer)

• Original Zenith warranty / guarantee papers

• Any accompanying booklet or hang tag

• Replacement leather strap (new) if required 

• Carefully presented and authenticity guaranteed

Condition

• Excellent vintage condition overall

• Very Light signs of age consistent with careful wear

• Sharp, legible hallmarks and inscriptions

• Clean, properly running Cal. 2531 movement

• A complete, ready-to-wear collector’s watch

Why Collect This Watch

• Solid gold case by the famed S. Sackman & Sons

• In-house Zenith Cal. 2531 – a true Swiss classic movement

• Complete with box and papers, extremely rare for this period

• Elegant mid-century design, perfect for formal or daily wear

• A genuine collector’s piece representing Zenith’s golden age