General Information

Serial #

506

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

BRASS CASING; BRUSHED SILVER METAL CLOCK FACE; GLASS CRYSTAL. SYNTHETIC MECHANISM & RUBBER-COVERED WIRES COMPOSE CHRONOGRAPH (?) CONNECTION. BRASS WINDING KEY. MAHOGANY BOX HAS FELT LINING & PADS; BRASS HINGES, LOCK, HANDLES AND OTHER FITTINGS

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

20.4 cm

Width

9.2 cm

Height

12.2 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Exploration and Survey

Category

Measurement-position

Sub-Category

N/A

Manufacturer

AKA

NARDIN

Country

Switzerland

State/Province

Unknown

City

Le Locle

Context

Country

Canada

State/Province

Unknown

Period

THIS CHRONOMETER POSSILY USED BETWEEN C.1902-1979

Canada

USED BY STAFF OF THE DOMINION OBSERVATORY, OTTAWA, REPORTEDLY IN CONNECTION WITH THE MENDENHALL HALF-SECONDS PENDULUM APPARATUS872133 (UNSUBSTANTIATED).

Function

USED IN SURVEY WORK TO CALCULATE POSITION OR DISTANCE. USED WITH MENDENHALL TYPE APPARATUS TO DETERMINE THE PERIOD OR TIME OF OSCILLATION OF THE PENDULUM, WHICH IN TURN DEPENDS UPON THE TIME DETERMINATION MADE BY A (DIFFERENT OR 2ND) CHRONOMETER (REF.1,P.24)

Technical

EST'D IN 1846 THE FIRM OF ULYSSE NARDIN MFD. POCKET CHRONOMETERS, REPEATERS & INTRICATE WATCHES. IN 1875 THEY BEGAN MFG MARINE CHRONOMETERS- THEY ARE STILL CONSIDERED A MAJOR QUALITY MFR. THIS MODEL BEARS REFERENCE TO PRIZE MEDAL WON IN PARIS IN 1899, ONE OF OVER 4,300 OBSERVATORY PRIZES WON BY NARDIN. (REF.2,P.209)

Area Notes

Unknown

Details

Markings

CHRONOMETER FACE MARKED: 'ULYSSE NARDIN/ LOCLE SUISSE/ 506/ GRAND PRIX/ PARIS'. CHRONOMETER FACE LABELLED IN ROMAN NUMERALS. RATE OF GAIN-LOSS DIAL DIVIDED [0]-8-16-24-32-40-48-[56]' AND LABELLED 'DOWN/ BAS' & 'UP/ HAUT'/ DYMO LABEL ON BOX TOP READS: '53067'.'92' STAMPED IN LOWER FRONT EDGE OF BOX TOP: DIGIT '2' HAS BEEN OVERSTRUCK- ORIGINAL MARKED '91'

Missing

NONE

Finish

BRASS CASING HAS BEEN LACQUERED. GLASS CRYSTAL HAS BEVELLED EDGE. MAHOGANY BOX HAS POLISHED FINISH. BRASS FITTINGS ON CASE & WINDING KEY ALSO HAVE LACQUERED FINISH

Decoration

N/A