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Details & Cataloguing

Masterworks of Time: Adolf Lange, The Golden Era of Glashütte

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Geneva

J. Bock
A RARE SILVER AND GILT-METAL OVAL ASTRONOMICAL CALENDAR WATCH WITH ALARM CIRCA 1635
Movement: gilded full plate, verge escapement, decoratively pierced and engraved pinned-on floral balance cock, blued steel wheel and click set-up with screwed-on cock in the form of an ostrich's head and neck surrounded by foliage, border of the backplate decorated with engraved scrolling flowers and foliage, fusee and gut line, decoratively pierced and engraved alarm barrel, vase-shaped pillars, signed J. Bock f
Dial: gilded and engraved with scrolling flowers and foliage, the lower time dial with inner rotating disc for alarm indication mounted to the edge with a blued steel bug indicating the time upon a silver chapter ring with Roman numerals, short hand to the centre for setting alarm time, the top of the dial with silver chapter ring for date, inner ring calibrated for month to the dial plate and with indication for their number of days, subsidiary dial for days indicated by their corresponding ruling planet to the left and moon-phases to the right with small square aperture above for moon age
Case: oval silver, front lid with engraved armorials, the back plain, gilded engraved bezels, the band decoratively pierced for sound emission and engraved with scrolling flowers and foliage, gilded turned terminal with boss to the base, floriate-form pendant with plain ring, the inside lid discreetly stamped with later hallmarks to the centre, bell mounted to the inside case back

length including pendant and terminal 72mm, width 47mm
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Provenance

Antiquorum Geneva, 10 April 1983, lot 236
Antiquorum Geneva, The Sandberg Watch Collection, 31 March - 1 April, 2001, lot 252

Catalogue Note

Johann Bock of Frankfurt is listed by Abeler in Meister der Uhrmacherkunst, 1977, p.81. For another astronomical watch with calendar but without alarm by Johann Bock, see Antiquorum Geneva, 18-19 October 1997, lot 577.

Masterworks of Time: Adolf Lange, The Golden Era of Glashütte

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Geneva