Gebrüder Hahn, Stuttgart

AN ASTRONOMICAL CYLINDER WATCH WITH CALENDAR, PERIODS OF THE DAY, DEAD CENTRE SECONDS AND HALF-SECOND BEATING BALANCE IN LATER SILVER CASE MOVEMENT CIRCA 1800, CASE MID 19TH CENTURY

• Movement: gilded full plate, cylinder escapement, large half-second beating 5-arm flat brass balance, large and unusual decoratively pierced and engraved circular balance bridge with central regulation sector, multi-faceted red endstone, the coils of the mainspring going barrel exposed within an aperture for the backplate, cylindrical pillars, signed Gebrüder Hahn, Hofmechania [court mechanician], à Stuttgardt
• Dial: white enamel, subsidiary dial for time with Roman numerals, outer Arabic minute ring, two further subsidiary dials for days of the week combined with periods of the day, months with their length and planetary symbols combined with date all with gold hands, blued steel dead centre seconds indicating to an outer seconds ring, signed Hahn à Echterd and further marked "Elles sont toute marquèes"
• Case: later silver, engine-turned back, milled band, case numbered 2, 25525
diameter 50mm

Provenance:
For a similar watch, but in a gold case, and a note on the brothers Hahn, see lot 68.