Repeating Chronograph Watch no. 15598

Case: Missing, hunting, cover winding. New perfect silver case made by Steffen Pahlow in Germany. Dial: Double dial, the first white enamel, Roman numerals, aperture for moon phase, subsidiary seconds dial, the second annular, indicating day & date, with central aperture to display movement, gold spade hands, unsigned. Movement: Cover winding, nickel, 29 jewels, bi-metallic balance with blued steel balance spring with Breguet overcoil with polished steel kidney piece. Provenance: ???? - Haas Neveux, Geneva 1998 - Antiquorum October 31, 1998 est 5-6,000chf sold 6,325chf "B. Haas & Cie., No. 15598, Swiss, circa 1890. Very rare, double face, moon phase astronomical, keyless minute repeating, watch movement with perpetual calendar, wound by opening and closing the cover. D. White enamel, on the front face, with Roman numerals, outer Arabic minute ring, sunk subsidiary seconds and moon phase aperture. White enamel chapter ring on the rear face, with dates and clays of the week. Gold "spade " hands. M. Nickel plated, 29 jewels, straight line lever escapement, cut bimetallic balance, blued steel Breguet balance spring. Repeating on gongs with slide in the band. Haas patented winding device by opening and closing the cover. Accompanied by copies of the original patents. Diam. 55mm." 2020 - YouTube Video of case making by watchmaker Steffen Erich Pahlow www.s1p.de - Herr Steffen Erich Pahlow 02.07.1941 - 21.01.2023 Part One Part Two Part Three Part Four Part Five Part Six Part Seven Part Eight Part Nine Part Ten Part Eleven Part Twelve Part Thirteen Part Fourteen Part Fifteen Part Sixteen 2024 - Dr Crott auction, est Eur1,800-3,000, sold Eur3,800, "A collection of 6 pocket watches An intricate and rare minute repeating hunting case pocket watch movement in a later silver case with cover wind mechanism and full calendar, Case Silver · glazed on both sides. Dial Front side: enamel, auxiliary seconds at "9", moon phase at "3". Back side: outer enamel chapter ring with day and date indicator, eccentric dial for month indicator. Hairlines. Movement Bridge movement, 2 hammers, 2 gongs, club-tooth lever escapement, screw compensation balance. Very good, capable of running, cleaning needed. English patent No. 3945 of December 2, 1873 was granted to Benjamin Haas for the development of a novel and unusual winding mechanism, which used the energy that is generated when the front cover of the watch is closed. Haas improved the original idea further and his watch possesses a well-developed system with a 36-hour power reserve (generated by twelve closings). Haas changed the going train by adding an additional wheel so that a single closing was able to achieve three hours' winding. He also invented a safety device which disengaged the mechanism when fully wound and thus prevented any damage to the cover. In his book "Das klassische Taschenuhrgehäuse" (classic pocket watch cases) Steffen Pahlow (1941-2023), a self-taught Tourbillon maker, gave a fine explanation of pocket watch case making. The book describes his insights from his practical work and is a useful addition to the small supply of technical literature on the subject. He describes a possible way to get started with case-making from a self-taught perspective. This timepiece is a good example of his work. Movm no.15598 Case no.15598 Diam.58 mm Circa1880/2010 Ctry.Germany/Switzerland Wt.209 g"