The complicated desk clock Ref. 27001M-001 offered by Patek Philippe for the Only Watch 2021 charity auction is inspired by a desk clock delivered to James Ward Packard in 1923. The original model is now preserved in the Patek Philippe Museum. This unique piece is equipped with the new caliber 86-135 PEND IRM Q SE. It features a perpetual calendar, moon phases, week-number display and power-reserve indication (31 days). It is adjusted to a precision rate of -1/+1 second per day. This exceptional Grande Complication is housed in a sterling silver cabinet with vermeil decorative elements and American walnut inlays.