Swiss chronometer movement for testing Circa 1947

Chronometer movement in aluminium case
–
A Swiss chronometer movement in an aluminium case for Observatory testing, circa 1947. Glazed ¾ plate movement, Guillaume balance. White enamel dial with Arabic hours, outer minute divisions and subsidiary seconds at 6 o’clock. Dial signed, movement signed and numbered. Comes with a Bulletin de Marche l’Observatoire Astronomique de Neuchâtel, dated December 21, 1954 and February 8, 1956 and seven Extracts from the Chronometer Archives by Andreas Hidding.
–
Dimensions: 50 x 45 mm
–
Weight: 106 g
–
Signed: Omega Swiss made
–
This Omega chronometer movement was tested seven times in chronometer trials:
– 1953 at the Neuchâtel Observatory, where it finished in 47th place (59 participants) in the class “Chronomètres destinés à être portés en bracelet”
– 1954 at the Neuchâtel Observatory, where it finished in 27th place (53 participants) in the class “Chronomètres destinés à être portés en bracelet”
– 1956 at the Neuchâtel Observatory, where it finished in 18th place (99 participants) in the class “Chronomètres – bracelet”
– 1956 at the Geneva Observatory, where it finished in 18th place (56 participants)
– 1965 at the Geneva Observatory, where it finished in 24th place (140 participants) in the class “Concours D / Bracelet”
– 1966 at the Geneva Observatory, where it finished in 41st place (126 participants) in the class “Concours D / Bracelet”
– 1967 at the Geneva Observatory, where it finished in 14th place (88 participants) in the class “Concours D / Bracelet”
–
The seconds dial still bears the marker of the visual check. The movement was adjusted by Joseph Ory.