Illustration. The seconds hand sweeps, like the real movement.
Why it's interesting
A 37 mm tribute to the 1967 Ultra-Chron, Longines' first production high-frequency wristwatch, beating at the same 36,000 vph as the modern diver. Sunray silver, a date and a fine multi-link bracelet make it the everyday version.
Watch DNA. Filled tags are editorial; outlined tags come from the specifications.
The numbers
Verified specificationsSize
- Diameter
- 37mm
- Lug to lug
- 44.6mm
- Thickness
- 10.9mm
- Lug width
- 19mm
Because you like this…
Chosen for shape, size, colour, character and price. Rarely the same brand twice.
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About this page
Verified specifications, checked September 2026
Dimensions, water resistance, movement and crystal were checked against the sources below.
Calibre L836.6 per the product sheet. Launch year and history per Monochrome (October 2025). Monochrome's 2022 diver article says the first Ultra-Chrons were sold in December 1966.
The illustration is a bezelga rendering generated from the specifications. It is not a photograph and may simplify details such as logos, text and finishing.
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