| Grading System | |
|---|---|
Grade: |
|
Case: 3-8 |
Good Slightly scratched |
Movement: 2* |
Very good Overhaul recommended, at buyer's expense |
Dial: 3-6-8-01 |
Good Slightly oxidized Slightly scratched HANDS Original |
Brand Longines, Switzerland
Year 1949
Diameter 41 mm.
Caliber 14.68Z
Signature Dial and movement signed
Accessories extract from the archives
Notes
Kew Observatory trials for watches
Various laboratories around the world were responsible for grading and testing watches, the most stringent being the Kew (Teddington) Observatory, west of London. A standard Swiss chronometer test would last 15 days, however, the Kew test lasted 44 days. The tests consisted in observation of the watch's timekeeping in various positions and at various temperatures, with points awarded for accuracy.
Various laboratories around the world were responsible for grading and testing watches, the most stringent being the Kew (Teddington) Observatory, west of London. A standard Swiss chronometer test would last 15 days, however, the Kew test lasted 44 days. The tests consisted in observation of the watch's timekeeping in various positions and at various temperatures, with points awarded for accuracy.
Provenance
Property of a Swiss Gentleman