IWC Portugieser Yacht Club Chronograph IW390701 44.6mm Steel Blue Dial (Calibre 89361 Flyback, 68-Hour Reserve)
TL;DR: The IWC Portugieser Yacht Club Chronograph IW390701 is a sporty-luxury 44.6mm stainless steel chronograph with a sunburst blue dial, powered by the in-house Calibre 89361 featuring a flyback chronograph and 68-hour power reserve, finished with an ergonomic bracelet and a clasp micro-adjustment system, plus 60m water resistance and a screw-down crown for surface swimming.
The IW390701 sits in the Portugieser family, but it wears and feels more like a modern sports chronograph than a pure dress watch. The 44.6mm case and 14.5mm thickness give it real wrist presence, while the sunburst blue dial adds that nautical, yacht-club character the model is known for. Rhodium-plated hands keep the dial crisp and upscale, especially under bright light where the sunburst finish really comes alive.
Inside is the IWC-manufactured Calibre 89361, a higher-end chronograph movement that includes a flyback function. That means you can reset and restart the chronograph instantly with a single press, which is useful if you time back-to-back intervals. You also get a strong 68-hour power reserve, making it easier to rotate with other watches without constantly resetting. The bracelet is designed to wear comfortably, and the micro-adjustment system in the clasp is a big daily-life win, especially in warm climates where your wrist size can change during the day. With 60 meters of water resistance and a screw-down crown, it’s comfortable for surface swimming and general water exposure.
Specifications
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Brand: IWC Schaffhausen
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Collection: Portugieser
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Model: Yacht Club Chronograph
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Reference: IW390701
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Case Material: Stainless Steel
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Case Diameter: 44.6 mm
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Case Thickness: 14.5 mm
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Dial: Sunburst blue
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Hands: Rhodium-plated
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Movement: IWC-manufactured automatic chronograph
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Calibre: 89361
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Power Reserve: 68 hours
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Chronograph: Flyback chronograph
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Bracelet: Stainless steel bracelet (ergonomic design)
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Clasp: Micro-adjustment system
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Crown: Screw-down crown
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Water Resistance: 60 meters
Key Features
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Sportier Portugieser with a true Yacht Club personality and strong wrist presence
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44.6mm steel case with a solid 14.5mm chronograph build
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Sunburst blue dial that looks premium and changes with the light
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In-house Calibre 89361 with a flyback chronograph for quick interval timing
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Long 68-hour power reserve for easier rotation and daily convenience
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Ergonomic bracelet designed for comfort and a secure fit
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Clasp micro-adjustment for on-the-fly sizing changes throughout the day
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60m water resistance and screw-down crown suitable for surface swimming
