IWC Portugieser Tourbillon Rétrograde Chronograph
IW504506
The IWC Portugieser Perpetual Calendar Tourbillon brings two emblematic complications into a single, elegantly balanced composition. Kurt Klaus’s perpetual calendar arranges the date, day, month, four-digit year and moon phase around a deep blue dial, while the flying minute tourbillon creates a dramatic focal point at 12 o’clock. A 45 mm platinum case frames the seven-day, self-winding calibre 51950, giving this technically ambitious Portugieser a distinctly restrained presence.
Reference: IW504506
Movement: Automatic, calibre 89900
Power reserve: 68 hours
Case: 18 ct Armor Gold®, 43.5 mm
Dial: Black
Crystal: Sapphire
Strap/bracelet: Black alligator leather strap by Santoni
Features: Date; Chronograph; Flyback; Anti-reflective crystal; Tourbillon
Water resistance: 30 m / 3 ATM
Year: 2026 — Full set
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