Movement & Technical Notes
Inside is the JLC 9 OLN, a widely respected small-format hand-wound calibre from the brand’s classic mid-century repertoire. Variants in this family are often discussed alongside the JLC 90 / 90LN lineage, which is documented as being based on the A. Schild AS 1194 ebauche (a common, serviceable, and proven architecture used across the period). A key practical advantage of this design is shock protection (seen on AS 1194 executions using systems such as KIF), improving durability for real-world wear – particularly important in small watches where tolerances are tight.
In short: this is the kind of compact “workhorse” manual movement collectors appreciate for its straightforward construction, reliability, and long-term maintainability.
Important Notes
- Dustproof only
- No water resistance warranty is provided
Dimensions
- Width (without crown): 18.5 mm
- Width (with crown): 19.5 mm
- Height (lug to lug): 16.6 mm
- Thickness: 7.9 mm
- Lug width: 10 mm









