Eterna-Matic early five-ball Automatic | Two-tone case, “fancy” lugs | Cal. 1248T | Vintage 1950

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The service and identification document is included in the price.

Collector highlights:

Movement desirability — Early Eterna-Matic automatic with the brand’s signature ball-bearing rotor (five-dot logo). Caliber stamp “1248T” visible by the balance; robust, thin architecture with efficient winding, Incabloc shock protection, ~18,000 vph.

Early post-war Eterna-Matic era — beaded minute track and applied gold furniture typical of early-1950s production. Dating to ~1952 by movement family (124x), logo style, and case design.

Dating statement — Movement family/mark “1248T” and dial/logo cues date the watch to ~1952 (method: construction & caliber context).

Specs buyers like — automatic winding; center-seconds architecture (dial presently configured as a clean two-hand display); Incabloc; Swiss-made.

Case & hallmarks — compact fancy-lug case in stainless steel with rose-gold-tone bezel and crown (two-tone; not hallmarked as solid gold). Inside back stamped “ETERNA WATCH CO SWISS / BREVET + cross / ACIER INOXYDABLE”; snap-on back.

Diameter 31 mm / 1.22 in. Lug width: 16 mm.

Dial — original silver dial with applied gilt “12” and arrow indices, dotted minute ring, and five-ball Eterna-Matic logo; even, attractive patina with clean printing.

Condition cues — crisp rotor engraving, clean screws and plates; sharp caseback stamps with heavy perlage.

Service (08.2025) — full disassembly; ultrasonic cleaning; re-assembly and lubrication (Moebius oils); timing & regulation; case and crystal cleaned (no polishing of hallmarks); final QC.

Strap/Bracelet — new black leather strap, 16 mm; shown on an 18 cm (7.08 in) wrist.

Water-Tightness — Splash Water Resistant (handwashing ok, not showering).

Box — Special customized secure black travel watch case.