Founded in 1868 by American engineer Florentine Ariosto Jones in Schaffhausen, Switzerland, IWC (International Watch Company) blends Teutonic dial clarity with American industrial precision. In the 2026 super clone arena, ZF Factory, YLF, and V7 Factory have perfected IWC’s three foundational pillars: the dress-chronograph Portugieser Chronograph (Ref. IW3716 / IW3714), the twin-barrel Portugieser Automatic 7-Days (Ref. IW5007), and the aviation icon Big Pilot & Pilot’s Chronograph.
- True Column-Wheel Calibre 69355 (Portugieser IW3716): When IWC upgraded the closed-back IW3714 to the exhibition-back IW3716, ZF responded by cloning the bi-directional pawl-winding Calibre 69355 with the 6 o’clock small seconds and 12 o’clock 30-minute register in exact 1:1 vertical alignment.
- Real 5-to-7 Day Twin-Barrel Power Reserve (Portugieser IW5007): On the 42.3mm IW5007, the power reserve gauge at 3 o’clock is 100% functional, driven by a massive custom twin-barrel Pellaton-style clone calibre (Cal.52010).
- Signature Double Blue Anti-Reflective Sapphire: Captures IWC’s unmistakable violet-blue optical shimmer across the arched-edge crystal.
- 3D Applied Arabic Numerals & Feuille (Leaf) Hands: Mirror-polished or heat-blued leaf hands hover just tenths of a millimeter above the railway chapter ring.
1. Portugieser Chronograph (IW3716 & IW3714) vs Portugieser 7-Days (IW5007)
Why is the 41mm IWC Portugieser Chronograph one of the most popular executive watches in New York and Chicago financial districts? Because its ultra-slim bezel makes the dial look expansive and clean while sliding effortlessly under a French cuff. Compare our classic IWC Portugieser Chronograph 41mm White Dial Blue Hands & Numerals and the lacquered anniversary IWC Portugieser Chronograph 150 Years IW371601 Blue Dial Cal.69355.
If you prefer a non-chronograph layout with a working power reserve indicator and date at 6 o’clock, inspect the IWC Portugieser Automatic 7-Days IW500701 and IWC Portugieser Automatic IW500705 Silver/White Dial.
| IWC Model Family | Reference | ZF Factory Calibre | Key Visual & Mechanical Trait |
|---|---|---|---|
| Portugieser Chronograph | IW3716 / IW3714 (41mm) | Clone Cal.69355 / Slim 7750 | 12 & 6 Vertical Sub-Dials + 12.6mm Slim Case |
| Portugieser Automatic 7-Day | IW500705 / IW500701 (42.3mm) | Custom Clone Cal.52010 | 100% Working 7-Day Power Reserve Dial at 3h |
| Pilot’s Chronograph / Top Gun | IW3777 / IW389001 (43mm–44mm) | Day-Date Chronograph Calibre | Soft-Iron Anti-Magnetic Cage + Ceramic Case |
| Pilot’s Mark XVIII / XX | IW3270 / IW3282 (40mm) | Swiss SW300 / Asian 2892 | 9.9mm Slim Aviation Tool Watch |
2. IWC Pilot’s Chronograph, Mark XVIII & Top Gun Ceramic
On the aviation side of Schaffhausen, our IWC Pilot’s Chronograph Le Petit Prince Blue Dial, IWC Pilot’s Watch Top Gun Matte Black Ceramic IW389001, and IWC Pilot’s Mark XVIII Heritage feature the signature triangle with two dots at 12 o’clock, day-and-date apertures at 3 o’clock, andSantoni-style calfskin or alligator straps with orange leather lining.
- ⌚ IWC Portugieser Chronograph 41mm White & Blue Hands — Heat-Blued Leaf Hands & Applied Blue Arabic Numerals
- ⌚ IWC Portugieser Chrono ‘150 Years’ IW371601 — Exhibition Caseback with Clone Calibre 69355
- ⌚ IWC Portugieser Automatic 7-Days IW5007 — Working 7-Day Power Reserve & Twin Barrels
- ⌚ IWC Pilot’s Top Gun Chronograph IW389001 Ceramic — Matte Black Zirconia Ceramic Case & Titanium Back
- ⌚ IWC Pilot’s Chronograph Rose Gold & Midnight Blue — Day-Date Complication & Sunburst Dial
Collector FAQ & Pre-Shipment QC Answers
Does the power reserve hand at 3 o’clock on the ZF Portugieser IW5007 actually work?
Yes! As you wind the watch or wear it, the hand sweeps from the red ‘1’ reserve zone up to ‘7’, accurately tracking the remaining mainspring tension.
How thick is the ZF IWC Portugieser Chronograph IW3716?
ZF’s custom-slimmed movement keeps the case height at 12.6mm–13.0mm, matching the genuine exhibition-back IW3716 profile.
