Ca. Ø58mm, ca. 121g, 18K pink gold, coined band, master's mark L & R, dome signed, C. Schultz (probably owner's engraving), extremely rare calibre with magnificent decoration, 2 barrels for the movement and the independent jumping seconds, cylinder escapement, large balance, enamel dial (fine scratch), jumping centre seconds, very rare snake hand, decentral time display, hour and minute with Breguet hands, in good condition, intact, extremely rare, probably original key.