Photo by EMore98 (CC BY-SA 4.0), via Wikimedia Commons
Nautilus Travel Time
The dual-time-zone Nautilus references: 5990/1A and the later 5990/1R combine a flyback chronograph with Patek’s Travel Time module (independently-adjustable local hour hand, day/night indicators). The most-complicated steel-case Nautilus production reference.
top-luxurymodernPatek Cal. CH 28-520 C FUS -- automatic flyback chronograph with second time zone, 28,800bph, 55h PR, 40j; column-wheel, vertical clutch; used in Nautilus 599040.5mm2014–presenteditorial
