Difference between revisions of "Longines Ultra-Chron"
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==Longines Ultra-Chron== | ==Longines Ultra-Chron== | ||
| + | Released in 1967, one year after the Gyromatic, the Ultra-Chron’s special lubricant—molybdenum bi-sulphide—solved the friction issue that plagued the early hi-beat movements. Advertisements touted the Ultra-Chron’s accuracy to “within a minute a month.” | ||
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| + | Reference 7970-5, was released in the late 1960s. The hi-beat Calibre 461 movement is housed in a cushion case surmounted with a Bakelite bezel in vibrant orange and black. Though rare, the Reference 7970-5 is not as rare as the manufacture’s other vintage diver—the SuperCompressor, Reference 7150-1 | ||
==Features== | ==Features== | ||
Revision as of 16:21, 3 June 2020
Longines Ultra-Chron
Released in 1967, one year after the Gyromatic, the Ultra-Chron’s special lubricant—molybdenum bi-sulphide—solved the friction issue that plagued the early hi-beat movements. Advertisements touted the Ultra-Chron’s accuracy to “within a minute a month.”
Reference 7970-5, was released in the late 1960s. The hi-beat Calibre 461 movement is housed in a cushion case surmounted with a Bakelite bezel in vibrant orange and black. Though rare, the Reference 7970-5 is not as rare as the manufacture’s other vintage diver—the SuperCompressor, Reference 7150-1
Features
- Case Diameter: 41mm
- Case Height: 12 mm
- Case length: 42 mm
- Lug Width: 22 mm
- Movement: Longines 431 automatic,25j, 36.000 bph, 39 hr power reserve,
- Case material: Stainless steel
- Crown: Non-screw down
- Bezel: Uni-directional indexed w/ 60
- clicks
- Water resistance: Not rated
- Vintage: '60s
Links
Longines Diving Watches
