PS Horology revisits George Graham's dial language in the Tsuba 1720

Monochrome Watches reports that the 38.3mm steel case is 8.91mm thick and retains the integrated bracelet of the Tsuba collection. The hand-finished gold dial uses engraved, lacquered Roman numerals and reverses the usual positions of the hour and minute chapter rings.

The automatic Vaucher 5401 movement is 2.6mm thick, uses a tungsten micro-rotor and provides a 48-hour power reserve. The edition is priced at CHF 26,000 before taxes and shipping, with deliveries expected in February 2027.