4. A silver and niello keyless wind open face chronograph pocket watch Chronographe de poche à cadran ouvert en nielle et argent (800) remontoir au pendant Date: Circa 1900 Movement: Swiss lever, cut and compensated bi-metallic balance, snail cam regulation, No.36254 Dial: White Case: Niello decorated round, No.1923, cuvette No.36254 Size: 54mm Weight: 130,10g