Brosse. A fine and rare silver open face key wind chronometer pocket watch with oversized balance wheel, together with silver key
Numbered 13, Circa 1825
English chronometer movement with Earnshaw spring detent escapement, large brass 3-arm balance and bi-metallic regulation, signed white enamel dial with large off-set hour dial and offset seconds, blued steel hands in both, polished and engine turned silver case with signed gilt finish cuvette, start-stop button in the reeded band, together with a finely made silver and blued steel winding key, dial, cuvette and movement signed
- Brosse was known for making unusual and precise clocks and watches, and a number of his exceptional regulators are housed at the Musée des Arts et Métiers, Paris. All have highly sophisticated and unusual escapements, namely interesting and various forms of detent and constant force escapements. He was awarded a silver medal at the Exposition des Produits de l'Industrie Francaise in 1844.