Longines "Classic Man", Mechanical Calibre 420, yellow gold 18 carats 750/000, Circa 1968

LONGINES 1960'S - CALIBRE 420 - MEN'S WRISTWATCH IN 18K (750) YELLOW GOLD.

Case n° 1552/13346976 - Movement n° 13348978 - Longines mechanical Calibre 420. Circa 1968 - Complete overhaul Longines World Service (Ateliers Longines Saint-Imier, 2025). Original Longines box included - Excellent overall condition - Authentic timepiece.

The essence of 1960s Swiss elegance.

Édition Unique presents here a mechanical Longines watch in yellow gold 18 k (750), typical of the refined, measured style of the late 1960s.

This timepiece illustrates the period when the Saint-Imier factory was still designing its own movements, before caliber standardization. Fine, balanced and precise, it embodies gentleman's watchmaking: a subtle, timeless art of mastery.

Caliber 420, launched in 1965, derives directly from the famous 30L, a movement renowned for its robustness and precision. It bears witness to the watchmaking expertise of an era when Longines produced its own calibres in a spirit of mechanical excellence and discreet elegance.

Details & features

Reference / Numbers: Case 1552 / 13346976 - Movement 13348978.

Estimated year: 1967-1968

Caliber: Longines 420 - Hand-wound mechanical - 17 jewels - 18,000 a/h - Power reserve ≈ 42 h

Case: 18 k (750/1000) yellow gold - Clipped caseback - Diameter 33 mm.

Dial: Silvered sunray, applied gold baton hour markers, small seconds at 6 o'clock.

Hands: Gold baton hands (replaced during the 2025 revision, in keeping with the original aesthetic).

Glass: New - Replacement Longines World Service 2025

Bracelet: Black alligator-style calf leather signed Longines, gold-plated buckle signed.

Gross weight: ≈ 27.4 g

Water-resistance: not water-resistant (after Longines revision).

Overhaul & condition

Complete overhaul carried out by Longines World Service (Saint-Imier, Switzerland) in October 2025:

- complete dismantling of caliber 420 ;

- replacement of glass, hands and defective components;

- cleaning, lubrication and chronometric adjustment;

- issue of an official Longines warranty card (valid until November 2027).

The watch is now in excellent overall condition. The yellow gold case retains its lustre, with no noticeable scratches, and the signed crown still has its original finish. The dial, original and unrestored, shows a few slight time marks between 2, 3 and 4 o'clock, as well as on the small seconds counter. These discreet traces contribute to the watch's charm: they recall its authenticity, its preserved history and the assertive choice of Edition. Unique to never "freeze" time, but to sublimate it.

Delivered with

- Original Longines box

- Longines World Service box (2025)

- Longines 24-month warranty booklet and cards

- Service invoice (Longines Switzerland, 2025)

- Old parts replaced (hands, glass, bracelet with gold-plated buckle)

Specialist's comment

This Longines calibre 420 embodies a rare elegance: a minimalist design, a historic manufacture movement, and an intact soul. Its light, sincere patina, comprehensive presentation and factory overhaul make it a refined men's watch that is both collectible and wearable. In a market where many antique watches are over-polished or entirely restored, this Longines seduces with its perfect balance between authenticity and freshness - the very philosophy of Édition Unique: to sublimate without denaturing, to approach the unique.

Highlights ° Longines Manufacture Calibre 420 - mechanical, reliable and precise. Case yellow gold 18 k - Ideal proportions (33 mm). Complete overhaul Longines World Service (Switzerland, 2025). Original dial with elegant, natural patina. Complete set: boxes, papers, warranty, original parts preserved. Functional, historical and dressed piece.