International Watch Co., Schaffhausen, "IWC" Probus-Scafusia / Präzisions-Zeitmesser 1. Klasse Sternwarte Bulletin, "Qualität Extra", Movement No. 363535, Case No. 492611, 53 mm, 96 g, circa 1906

A gentleman's extremely rare, fine Schaffhausen pocket watch in "Quality Extra" finish, sold on October 4th, 1910 to Dankwerth family in Hannover - with original box and IWC extract from the archives
Case: 14k rose gold, polished, gold dome. Dial: enamel, Arabic numerals, auxiliary seconds, gold spade hands. Movm.: 3/4 plate movement, frosted, gilt, screwed gold chatons, gold screw compensation balance, index spring fine adjusting device.