Silver pocket watch “Invar”.

Master brand “C.M.I.“, hallmarked inside cover “Galonné. 0.800 crescent/crown”, No. 017986, engraved inner cover: “Ancre de haute précision”, “Réglage breguet a courbe” (Breguet spiral) “Théorique de Philipps”. “Medal D'Argent” and “Lille 1902", movement marked “Invar”, work No. 025540, guilloched and garnished on the back, white enamel dial with Arabic numerals, small seconds at 6 o'clock, weight approx. 87g, diameter approx. 50mm, with Alpacca silver chain.