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Vintage

Longines Ultra-Chron High-Frequency watch (1968) 7951

795135mm

Serviced and revised by Longines Heritage workshop

Collector's Corner

The long and rich history of Longines is written into each of the brand’s design. Each piece produced over the years is part of the Swiss watchmaker identity, a historical legacy that Longines has always strived to preserve and highlight.

That is why the brand now offers a range of exceptional vintage watches that have been carefully serviced and revised by its specialised heritage workshop. These unique models are exclusively on sale in the Longines Geneva Boutique (Switzerland) and available in click & reserve.

  • Type of watch

    Stainless steel watch in a purist design, powered by a high-frequency movement, caliber 431. Longines guaranteed at its launch in 1967 an accuracy of a minute a month or two seconds per day. This model (ref. 7951) is part of the Ultra-Chron collection and was launched in 1968.

  • Serial No

    15’270’516

  • Condition

    Overall excellent, attractive condition, original dial

    Serviced and revised by Longines Heritage workshop.

  • Date of production

    1968

  • Date of sale

    In 1969 to the company Urania Handels A/B, Sweden.

  • Documents

    Certificate of authenticity by Longines

  • Dimension

    35mm

  • Case message

    Stainless steel round case, the back is engraved with AB STATSGRUVOR - 25AR

  • Material

    Stainless steel

  • Dial

    Silvered dial with applied steel indexes, date window placed at 3 o'clock, applied Ultra-Chron symbol, silvered winged hourglass logo and black Longines signature

  • Hands

    Luminous steel baton hands and sweep centre seconds

  • Dial color

    Silver

  • Movement Type

    Automatic

  • Caliber

    431

  • Functions

    Indication of hour, minute, second and date.

  • Movement

    Longines mechanical self-winding movement, caliber 431. This 25.60mm caliber features 17 jewels and the balance/balance-spring combination beats at a frequency of 36’000 vibrations per hour.

  • Material

    Leather strap

  • Bracelet/Strap

    19mm width

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What makes this timepiece exceptional

Stainless steel watch in a purist design, powered by a high-frequency movement, caliber 431. Longines guaranteed at its launch in 1967 an accuracy of a minute a month or two seconds per day. This model (ref. 7951) is part of the Ultra-Chron collection and was launched in 1968.

Longines registered the Ultra-Chron mark in Switzerland on 28 October 1966. The entire line of models in this collection was distinguished from other models by its high-frequency movement. It was one of the most accurate watches of its time in serial production: Its name Ultra-Chron stands for Ultra-Chronometer, which means more accurate than a traditional Chronometer. The Longines Ultra-Chron was the last mechanical watch to equal the accuracy of the electronic tuning-fork watches of its time. But of course without any battery.

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About restoration

Restoration by Longines is made up of more than ten meticulous steps calling on all the qualities of our experts. From diagnosis to testing, discover more about Longines workshop services.

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