Preliminary identification
Photo reference
3 uploaded photos
Overview
An exceptional late-1960s high-frequency automatic wristwatch featuring a 10k gold-filled monocoque case and a silvered sunburst dial. At its heart beats a legendary high-beat movement designed to rival the accuracy of early quartz technology.
Story
Introduced in 1967 to celebrate Longines' centenary, the Ultra-Chron was a mechanical marvel designed to guarantee accuracy within a minute a month. It achieved this by beating at a blistering 36,000 vibrations per hour.
Maker / Origin
Founded in 1832 by Auguste Agassiz, Longines is one of Switzerland's oldest and most respected watchmakers, famous for its historic ties to aviation and sports timing. During the mid-20th century, they were a true powerhouse of in-house movement design, pushing the boundaries of mechanical precision.
Condition & Value
The dial and hands appear remarkably clean with minimal spotting. The 10k gold-filled case shows light surface scratching and minor wear to the gold layer on the lug tips, which is typical for its age. It is currently fitted with a vintage Speidel expansion band.
Full Research
Sold comps, value drivers, and venue guidance pulled from recent auction results.
Build on this identification
Layer in sold comps, value drivers, and venue guidance.
Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.
Best Venue
Specialty auction or a focused dealer with buyers already in this lane.
Signed example with light edge wear and original frame.
Comparable format with stronger provenance and cleaner surface.
Smaller related piece with visible craquelure and trimmed margins.
Period match with softer condition and weaker subject matter.
Close market lane comp with similar material and presentation.