The Longitude at the Eve of the Third...
Geneva, Hotel Des Bergues, Oct 23, 1999
LOT 68
L. Leroy & Cie., Horlogers de la Marine, 4, Faubourg Saint Honoré, Paris, No. 1846, Brillé Patent, sold in 1959 for 1500 Francs, to the Service Hydrographique de la Marine.Fine Base de temps électromagnétique type "Chronostat II", in original fitted box.
CHF 1,000 - 1,200
Sold: CHF 1,495
C. Square glazed amagnetic painted metal case.M. Transistor controlled electrically impulsed, chronometer pattern Guillaume balance, free sprung blued steel helical balance spring.Signed on the movement.Dim. 68 x 68 x 40 mm.
| Grading System | |
|---|---|
Grade: AA |
Very good |
Case: 3 |
Good |
Movement: * 3 |
Notes
This type of instrument was produced in 37 examples only, between November 1957 and December 1959.