APS IWC Portugieser series complex perpetual calendar watch

The IWC Portugieser perpetual calendar is a richly complicated timepiece measuring 42.2mm by 14.9mm. It displays moon phase at 12, a small seconds and day indicator at 9, month at 6 with linked year display, and a power reserve with date at 3. The three-piece case pairs a brushed midsection with polished surfaces beneath a domed sapphire crystal, offering over 72 hours of power reserve.