Longines Vintage Watches

Longines: Nearly Two Centuries of Swiss Watchmaking

The history of Longines begins in 1832, when Auguste Agassiz founded a watchmaking workshop in Saint-Imier, in the Bernese Jura. In 1867, his nephew Ernest Francillon built a manufacture on a plot of land called "Es Longines" (the long strips of land in old French) — the name remained. It was one of the first true watch factories in Switzerland, bringing together under one roof the production of calibres and the assembly of watches. Longines obtained its first patent in 1867 and won a medal at the Paris World's Fair that same year — the beginning of a long series of international distinctions.

Throughout the 20th century, Longines built its reputation on two pillars: chronometric precision and classic elegance. The brand became the official timekeeper of the Olympic Games on fourteen occasions between 1905 and 2019, handling the timekeeping of equestrian competitions, motor rallies, and ski races. In 1927, Longines accompanied Charles Lindbergh during the first solo crossing of the Atlantic — the Hour Angle watch, designed with the pilot, made it possible to calculate longitude in flight. In 1931, Amelia Earhart also wore a Longines during her crossing. The brand adopted the winged hourglass as its logo as early as 1867 — today, it is the oldest watchmaking logo still in use without modification. Longines is now part of the Swatch Group.

Longines Vintage Collections in Detail

Flagship: The Flagship Model

Launched in 1957, the Longines Flagship is the signature collection of the house. Its name (the "flagship") reflects Longines's ambition to concentrate the very best of its expertise in this line. Each Flagship bears on the caseback a medallion depicting a caravel sailing with all sails set — a finishing detail that has become a hallmark for collectors. Vintage Flagship models were produced in steel, gold-plated, 10-carat gold, 14-carat gold, and 18-carat gold. Round cases from 34 to 36 mm, silvered or golden dials with applied hour markers, dauphine hands, automatic movements (calibre 340, 17 jewels) or mechanical movements. It is the classic Longines by definition — understated, legible, and well-proportioned.

Conquest: The House's First Collection

The Longines Conquest was launched in 1954 — it was the first watch line officially named by Longines, and the brand's first collection to be protected by the Swiss Federal Institute of Intellectual Property. The first generation (until 1959) stands out for its elaborate design, water-resistant screw-down casebacks, and movements often certified as chronometers. The calibre 291 (automatic) and the calibre 19AS are the most common movements found in vintage Conquest models. Some rare models feature a power reserve on the dial — a distinctive display that has become highly sought-after. 35 mm steel or gold cases, sunburst dials, applied hour markers. The vintage Conquest represents a particularly compelling entry point into quality Swiss watchmaking.

Admiral: The Design of the 60s–70s

Marketed at the end of the 1950s, the Longines Admiral adopted a resolutely modern positioning for its time. Vintage Admiral models frequently feature day-date complications (day of the week + date), rarer than the simple date found in the Flagship and Conquest collections. Textured dials, characteristic 60s–70s colors (blue, green, champagne), 35 to 41 mm cases — the earliest Admirals are renowned for the reliability of their movements. The Admiral Diver variant is a sought-after vintage diving watch — an accessible alternative to the Rolex Submariner and Blancpain Fifty Fathoms of the same era.

Ultra-Chron: The Race for High Frequency

In 1967, Longines launched the Ultra-Chron equipped with the calibre L430 — an automatic movement oscillating at 36,000 vibrations per hour (5 Hz), double the standard frequency of the time (18,000 vph). This high frequency delivers chronometric precision clearly superior to that of conventional movements. The Ultra-Chron was part of the technological race of the 1960s — when Longines, Zenith (El Primero, also 36,000 vph) and Girard-Perregaux (Gyromatic HF) competed in innovation before the arrival of quartz. Vintage Ultra-Chron models exist in round, cushion, or tonneau cases, in steel or gold — highly regarded technical pieces among discerning collectors. Point to note: high-frequency movements require more frequent servicing (every 3 to 4 years) due to the increased wear linked to their oscillation speed.

Legend Diver: The Historic Dive Watch

The original 1960s Longines Legend Diver is one of the most sought-after vintage diving watches. Its distinctive feature: a rotating inner bezel operated by a second crown at 2 o'clock, rather than an external bezel. Case in 42 mm steel (large for the period), enhanced water resistance, black dial with luminous hour markers — it is a tool watch designed for professional diving. The original Legend Diver is rare on the vintage market — models in good condition with original dial and hands are especially prized.

Tank, La Grande Classique & Présence

Beyond its main collections, Longines also produced dress watches. The vintage Longines Tank — rectangular Art Deco-inspired case, in steel or gold-plated — is a classic dress watch with an understated format. The La Grande Classique stands out for its ultra-thin case and integrated link bracelet — a particularly slim profile on the wrist. The Présence offers a traditional round format, clean dial, quartz movement — an accessible Longines dress watch.

Longines Calibres: Understanding Vintage Movements

Period Longines calibres are among the benchmarks of 20th-century Swiss watchmaking. Here are the most common movements found in vintage Longines watches:

• Calibre 30L — hand-wound, produced from the 1950s to the 1960s. Robust, precise, easy to service. One of the Longines calibres most appreciated by collectors.
• Calibre 340 — automatic, 17 jewels. The standard movement in 1960s Flagship models. Reliable and well-finished.
• Calibre 291 / 19AS — automatic, Conquest. Precise, often chronometer-certified.
• Calibre L430 / L431 — Ultra-Chron, high-frequency automatic at 36,000 A/h. A major technical innovation. The L431 includes a date.
• Calibre L633 — automatic day-date, Admiral. Robust, practical for everyday wear.
• Calibre 30CH — manufacture hand-wound chronograph. Longines’ in-house chronograph calibre — rare and highly sought-after.
• Valjoux 72 / 7733 Calibres — chronographs. Reliable Swiss ébauche movements used in certain Longines chronographs.
• Calibre L990 — ultra-thin automatic launched in 1977, only 2.95 mm thick. A reference calibre for slim dress watches.

At Atelier Victor, our watchmakers are familiar with all of these calibres. Each movement is disassembled, cleaned, oiled, adjusted, and tested before being offered for sale.

Longines vs Omega: Understanding the Positioning

This is a question collectors frequently ask. In the 1950s and 1960s, Longines and Omega were direct competitors — positioned at the same level, with calibres of comparable quality and equivalent prices. Longines regularly won the chronometry competitions of the Neuchâtel Observatory, often ahead of Omega. It was only from the 1980s and 1990s onward, after integration into the Swatch Group, that Longines was repositioned one tier below Omega in the group’s brand strategy. The consequence for the vintage market: Longines watches from the 1950s to the 1970s offer Omega-level movements and finishing, at pre-owned prices often 30 to 50% lower. That is what makes it one of the most interesting brands for informed collectors.

How to Recognize an Authentic Vintage Longines

The checkpoints our watchmakers verify on each piece:

• Winged hourglass logo — engraved or applied on the dial, present on the movement and caseback. The logo evolved over the decades — its shape makes it possible to date the watch approximately.
• Serial number — engraved on the back of the case. Longines has complete archives making it possible to verify the production date and original destination of each watch.
• Flagship medallion — embossed caravel on the caseback of Flagship models (absent on Conquest and Admiral).
• Movement marking — "Longines" engraved on the movement with the caliber number. Period Longines movements feature meticulous finishing (Côtes de Genève, perlage).
• Dial — "Longines" typography specific to each era, winged hourglass logo, "Swiss Made" or "Swiss" at the bottom of the dial.

At Atelier Victor, every Longines watch is authenticated by our experts. Each piece comes with an Atelier Victor invoice and authenticity guaranteed for life.

Vintage Longines on the Pre-Owned Market

Longines is regarded by observers of the watch market as one of the most undervalued vintage brands relative to the true quality of its calibers and finishing. The models whose demand is steadily increasing: 30CH caliber chronographs (an increasingly rare manufacture caliber), the original Legend Diver from the 1960s, the high-frequency Ultra-Chron, and the first-generation Conquest with power reserve. The presence of the original box and papers significantly increases the value of a vintage Longines — moreover, the brand archives in Saint-Imier make it possible to request an archive extract for any Longines watch.

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Frequently Asked Questions — Vintage Longines Watches

Which vintage Longines model should you choose to start a collection?

The Flagship is the natural entry point: automatic movement caliber 340, classic dial, balanced proportions. The Conquest offers a slightly sportier character with calibers often certified as chronometers. For a more modest budget, the Admiral models from the 1960s-70s with day-date complication are reliable, well-finished watches at particularly accessible prices.

What is the difference between Flagship, Conquest and Admiral?

The Flagship (1957) is the classic dress line — the showcase of the house, identifiable by the caravel medallion on the caseback. The Conquest (1954) is the sporty-chic line, often fitted with chronometer-certified calibers. The Admiral (late 50s) is the most modern line of its era, frequently incorporating day-date complications and colored dials.

What is the Ultra-Chron and why is it sought after?

The Ultra-Chron (1967) is an automatic watch equipped with a movement beating at 36,000 vibrations per hour — twice the standard frequency. This high frequency offers markedly superior chronometric precision. The Ultra-Chron is sought after for its technical innovation and its connection to the precision race of the 1960s. Point to note: these movements require servicing every 3 to 4 years.

How does Longines compare with Omega in vintage?

In the 1950s-60s, Longines and Omega were positioned at the same level, with calibres of comparable quality. Longines regularly won chronometry competitions. The repositioning of Longines in the 1980s and 1990s within the Swatch Group changed the perception of the brand. As a result: Longines vintage watches from the 1950s to 1970s offer Omega-level movements and finishing at often lower pre-owned prices.

Is the 30CH calibre a manufacture movement?

Yes. The 30CH calibre is a chronograph movement entirely designed and manufactured by Longines — a true manufacture calibre, unlike chronographs fitted with Valjoux calibres (ébauche movements). The 30CH is becoming increasingly rare on the market and is among the most sought-after Longines movements by collectors of vintage chronographs.

Can one obtain an extract from the Longines archives?

Yes. Longines maintains complete archives in Saint-Imier, making it possible to trace the history of each watch produced (date of manufacture, destination, calibre). An archive extract can be requested directly from the brand — a document that reinforces the authenticity and value of a vintage piece.

Are Longines vintage watches reliable for daily wear?

Yes. Longines’ historic calibres (30L, 340, 291, L633) are renowned for their robustness. Each watch sold by Atelier Victor is fully serviced by our watchmakers and covered by a one-year mechanical warranty. High-frequency movements (Ultra-Chron) require more frequent servicing (every 3–4 years).

Which Longines vintage watch for a woman?

The vintage La Grande Classique models with their ultra-thin profile, the small-format Flagship models (33–34 mm), and the Présence are elegant watches with restrained proportions. In gold or gold-plated finishes, they represent an appealing historical alternative to Cartier and Omega vintage watches for women.

Are Longines vintage watches a good investment?

At Atelier Victor, we approach vintage watchmaking from the perspective of a pleasure purchase. While certain models such as 30CH calibre chronographs, the original Legend Diver, or Ultra-Chron have seen demand evolve favorably, we guide our clients toward pieces that match their aesthetic and mechanical criteria, without making financial recommendations.

Where can I find a replacement strap for a Longines vintage watch?

Atelier Victor offers compatible watch straps — in genuine leather, with suitable lug widths (18 mm and 20 mm for most Longines vintage models). Contact us via WhatsApp.

Discover our other collections of Swiss vintage watches: Omega vintage, Tissot vintage , Zenith vintage, Universal Genève vintage. And our complete collection of vintage watches.

A question about a Longines vintage watch? Contact us via WhatsApp or by email.