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Speedmaster Gonzales™ · Reference Library

Reference Library

The Speedmaster Gonzales™ vintage Reference Library: nine reference families from the 1957 CK 2915 to the 2014 3570.50, with production years, calibres, dial variants, buying guidance, and sources — cross-checked and kept honest.

Coverage9 reference families · 1957–2014 · calibre 321, 861, 1861

The premier destination, one reference at a time

Every vintage Speedmaster reference family that matters to collectors — production years, calibre, case, dial variants, bezel, hands, crystal, bracelets and endlinks — researched from auction catalogues, reference literature, and collector forums, then cross-checked. Each entry carries a what to check before buying guide, flags what’s genuinely disputed, and links its source ledger.

Verified facts and collector lore are kept in separate boxes. Photography slots are reserved for owner photography throughout — no stock images, no renders.

The Broad Arrow era — 1957–1959

The first Speedmaster: engraved steel bezel, broad-arrow hands, calibre 321.

Straight-lug successors — 1959–1968

Black bezels and alpha hands arrive; the reference system changes under the line.

The 42 mm Professional — 1964–1969

Crown guards, twisted lugs, ‘Professional’ on the dial. NASA’s qualification era.

The calibre 861 era — 1968–1996

The Moonwatch years: cam-switched 861 at 21,600 vph.

The modern classic — 1996–2014

Calibre 1861, hesalite, and the longest-running Moonwatch reference.

How to use this library

New to vintage Speedmasters? Read the eras in order — each reference assumes the one before it. Hunting a specific watch? Use the 30-second identification cards on each page, then work through the buying checklist before you wire any money. And remember the house rule, printed everywhere on this site: market data is published for information and education — never as investment advice.