Vintage
Longines Ultra-Chron with high-frequency movement (1968) 7951-15500793
Case size:
No Longer available
This watch has been already sold. Let's find our other restored watches here.
Serviced and revised by Longines Heritage workshop
No Longer available
This watch has been already sold. Let's find our other restored watches here.
Serviced and revised by Longines Heritage workshop
Case size:
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.
Information & Conditions
Watch type
Stainless steel watch powered by a high-frequency caliber 431 movement. When it was launched in 1967, Longines guaranteed an accuracy of one minute a month, equal to two seconds a day. Marketed in 1968, this model (ref. 7951) is part of the Ultra-Chron collection.Serial No
15500793Condition
Overall excellent, attractive condition, original dial. Serviced and revised by Longines Heritage workshop.Production date
1968Sale date
-Documents
Certificate of authenticity by Longines
Case
Dimension
Ø 37.00 mmCase type
Stainless steel round case, the back is engraved with "AB STATSGRUVOR - 25AR"Material
Stainless steel
Dial & Hands
Hands description
Luminous steel baton handsDial color
Silver
Movement & Functions
Movement Type
AutomaticCaliber
431Functions
Hours, minutes, seconds and date displayMovement
Longines self-winding mechanical movement, caliber 431. This 25.60 mm caliber includes 17 jewels. The balance spring oscillates at 36,000 vibrations per hour.
Strap
Material
Leather strapSize
19 mm
What makes this timepiece exceptional
Longines registered the Ultra-Chron trademark in Switzerland on October 28, 1966. The entire collection is defined by the high-frequency movement that powers it. In terms of serial production, it is one of the most precise watches of this era: Ultra-Chron, short for Ultra-Chronometer, implies that this watch is more accurate than a traditional chronometer. The Longines Ultra-Chron was the last mechanical watch to match the precision of electronic watches of its time. Exceptionally, the piece on display here has never been sold or worn, as evidenced by its exemplary condition.
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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