Franck Muller, Imperial Tourbillon Minute Repeater, Ref. 6850 RMT, 18K white gold, 32 jewels, circa 1990’s.
overhaul
Overhaul – Ulysse Nardin, minute repeating chronograph
Ulysse Nardin, minute repeating chronograph, 18K yellow gold, open face case pocket watch, base movement made by Lecoultre, circa 1900s