ZF 2019 New Release: IWC Portugieser Annual Calendar Watch

Introducing the all-new ZF 2019 IWC Portugieser Annual Calendar Watch — a masterful timepiece integrating hours, minutes, seconds, date, day of the week, month, and power reserve indication. Renowned for its exceptional functionality and refined maturity, this watch invites horology enthusiasts worldwide to appreciate and support its craftsmanship.

[Case] Measuring 44 mm in diameter and 15 mm in thickness, the case features an elegantly proportioned, moderately thick profile. Its curved bezel is smooth and organic in form, finished with meticulous polishing that delivers a lustrous, high-gloss sheen — upholding ZF’s signature standard of excellence. The domed, double-sided anti-reflective sapphire crystal — precisely cut and painstakingly polished — represents an extraordinary technical challenge with an exceptionally high rejection rate; ZF spares no expense to faithfully replicate the authentic IWC appearance, delivering an unparalleled, near-original wearing experience.

[Movement] Based on complete disassembly and analysis of the genuine IWC Caliber 52850 (comprising 326 components), ZF has achieved an 80% structural fidelity through extensive prototyping and data-driven optimization. Crucially, the adjustment methodology and tactile feedback — including winding resistance, pusher response, and calendar advancement — are fully synchronized with the original caliber.

[Strap & Clasp] Supplied with premium Italian calf leather strap paired with a folding clasp crafted to match the exact specifications, finish, and functionality of the genuine IWC factory-fitted buckle.