156 - Omega - Observatory Chronometer

Omega - Observatory Chronometer (*) A large observatory chronometer from a small series of 88 pieces, which were intended for precision contests only. With certified copy of the original Bulletin de Marche de l'Observatoire Astronomique et Chronométrique de Neuchâtel, dated 15 May 1930 Movm. No. 6999766, Cal. 60.8, Dimensions 74 mm, circa 1930, Weight 318 g, Origin Schweiz, Accessories Case: Brass, chrome-plated, glazed screwed back. Dial: Enamel. Movm.: 1/2 plate movement, 24mm Guillaume gold screw compensation balance, blued balance spring with terminal curve by Philipps. The Omega chronometer 60.8 mm was intended for precision contests only. This very large caliber produced results which where better than those of caliber 47.7 mm. The observatory caliber which had been constructed taking into account all known findings and experiences shows some remarkable features even without. Only 88 pieces with the caliber 60.8 were produced between 1925 and 1930. Source: "Omega" 2007 by Marco Richon, page 174. In 1930, this Omega chronometer movement took part in the Neuchâtel Observatory’s "Chronomètres de Bord" chronometer competition, achieving the outstanding result of an average daily rate deviation of 0.11 seconds. The regulator was Gottlob Ith in Biel. Case: very good. Dial: very good. Movm.: very good, capable of running, cleaning recommended.