127 - École d'horlogerie - Spring Detent Chronometer

École d'horlogerie - Spring Detent Chronometer (*) A very fine observatory blank movement with a spring detent escapement in an observatory case Movm. No. 28973, Cal. 49 mm, Dimensions 79 x 96 mm, circa 1910, Origin: Switzerland Case: Wood, base metal, glazed movement. Dial: Enamel. Movement: Bridge movement, large Guillaume gold-screw compensation balance. Technology at its finest! The movement is exquisitely finished and cut; it is unadorned and offers a striking view of the large 19 mm balance wheel and the mainspring. The enamel dial is immaculate. Case: very good. Dial: very good. Movement: very good, capable of running, cleaning recommended.