ZF Edition — Leather Strap with Deployant Clasp
The ZF iteration of the IWC Portugieser Automatic 40mm (IW358310) represents the current benchmark for this specific reference. Recognized across collector forums for its structural accuracy, ZF successfully replicates the critical distance between the central hand pinion and the small seconds sub-dial at 6 o’clock—a metric that lesser factories frequently fail due to unmodified base movements.
Powered by a custom clone of the IWC Caliber 82200, the movement features decorated bridges and a rotor designed to mimic the genuine’s Pellaton winding system aesthetics. Operating at 28,800 vph, it provides a power reserve of approximately 36 hours. The movement architecture prioritizes visual fidelity when viewed through the exhibition caseback while maintaining reliable daily timekeeping.
The 40.4mm case is constructed from 316L stainless steel, featuring alternating polished bezels and brushed mid-case flanks. The dial exhibits a deep sunburst green finish, complemented by applied rhodium-plated Arabic numerals, a railway minute track, and traditional feuille (leaf) hands. The crystal is sapphire with a double-sided anti-reflective coating to minimize glare.
- Movement: Custom Clone Caliber 82200 — Approximately 36 hours
- Case Material: 316L Stainless Steel, 40.4mm diameter, ~49mm lug-to-lug
- Bezel: Polished 316L stainless steel, ultra-thin profile
- Crystal: Sapphire with double-sided AR coating
- Bracelet: Alligator-embossed calfskin leather with stainless steel deployant clasp
- Water Resistance: 50M stated — professional pressure test recommended before swimming
This reference is suited for collectors seeking a refined dress or smart-casual piece without the substantial case thickness inherent to the 7-day Portugieser models. Its classic proportions allow it to slide easily under a tailored cuff.

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