127 - École d'horlogerie - Spring Detent Chronometer

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