A friendship spanning 25 years, human endeavour, the summit of high-flying watchmaking expertise and an unprecedented blend of talents have all come together in the Tourbillon Planetarium Only Watch 2023 for the charity timepiece auction. This single piece features a Frederique Constant tourbillon and the brand’s remarkable manual finishings alongside Christiaan van der Klaauw’s planetarium – the smallest in the world and the first ever produced for a wristwatch.
Polished platinum 3-part case; scratch-resistant and anti-reflective convex sapphire crystal; see-through case back; water-resistant up to 3 ATM/30m/100ft
Blue aventurine dial applied silver diamond cut indexes; hand-polished silver colour hour, minute, day and date hands; heart beat opening at 6 o’clock with 60-seconds tourbillon; silver colour second hand; planetarium module at 12 o’clock; date and month module at 9 o’clock
FC-988 in-house caliber, automatic, 47 jewels, chamfering (anglage), hammering (martelage), circular graining (perlage & cerclage), flanks drawing (étirage des flancs), mirror polishing (poli miroir) decorations made in-house, engraved automatic bridge, silicon escapement wheel and anchor, 38-hour power reserve, 28’800 alt/h
Hours, minutes, 60 seconds-tourbillon, date, month, planetarium
Blue alligator leather strap with matt finishing