Geneva, Nov 09, 2025
LOT 358
LONGINES, SWITZERLAND, REF. 5397, SIDEROGRAPH, SOLD TO MARINE SERVICE HYDROGRAPHIQUE, ALUMINUM AND WOOD
CHF 5,000 - 10,000
HKD 48,600 - 98,000 / USD 6,300 - 12,500 / EUR 5,400 - 10,800 / JPY 950,000 - 1,900,000TO BE SOLD WITHOUT RESERVE
Sold: CHF 6,875
A very fine and rare, aluminum and wood, manual wind chronometer deck chronometer with center-seconds, split-seconds and power reserve.
| Grading System | |
|---|---|
Grade: |
|
Case: 3-6-8 |
Good Slightly oxidized Slightly scratched |
Movement: 2* |
Very good Overhaul recommended, at buyer's expense |
Dial: 2-6-8-01 |
Very good Slightly oxidized Slightly scratched HANDS Original |
Brand Longines, switzerland
Model Siderograph
Reference 5397
Year Sold to Longines France in January 1946
Movement No. 6989843
Case No. 309
Length 170
Caliber 21.29, 19 jewels
Height 132
Width 170
Signature dial, case and movement
Accessories extract from the archives, photocopy of the instruction manual
Notes
A siderograph is an instrument combining a clock and a navigation instrument which keeps a reference time equivalent to the time at 0° Greenwich longitude. It used to be quite helpful for pilots. Longines version stemmed from the one designed in cooperation with Charles A. Lindberg around 1930.
These examples were logically used by the Marine Service Hydrographique and upon decommission, the name was scratched off the dial.
These examples were logically used by the Marine Service Hydrographique and upon decommission, the name was scratched off the dial.