Longines Ultra-Chron High-Frequency watch (1968) Reference 7951
Serviced and revised by Longines Heritage workshop
- Movement Type:
- Stainless steel
- Dial colour:
- 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
Overall excellent, attractive condition, original dial
Serviced and revised by Longines Heritage workshop.
- Date of production
- Date of sale
- In 1969 to the company Urania Handels A/B, Sweden.
- Certificate of authenticity by Longines
What makes this timepiece exceptional
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.