01: LIVELY EXPRESSION
It’s not just a flying tourbillon that gives IWC’s Portugieser Tourbillon Mystere Retrograde a sense of dynamism: This 44.2mm platinum timepiece also features a retrograde date display on the bottom left of its dial, which jumps back to its starting position at the end of every month. (In shorter months, the date can be easily and quickly adjusted with its rapid-advance system.) Retrograde displays are typically energy-intensive because of the sudden bursts of power required to drive them – not a problem with this model’s mighty seven-day power reserve.