IWC Portugieser Chronograph Automatic Watch IW371445 41mm Original Strap Swiss

Watch Overview

Offered here is a highly collectible IWC Portugieser Chronograph Automatic wristwatch, reference IW371445.

Powered by the original IWC caliber 79350 automatic movement with 31 jewels and a chronograph complication. This Swiss-made timepiece features a central chronograph seconds hand, small seconds display, and a 30-minute counter sub-dial.

The self-winding movement operates at 28,800 vph and offers an approximate 44-hour power reserve.

Housed in a 41mm round stainless steel case with a fixed smooth bezel and a scratch-resistant sapphire crystal. It comes fitted with the original IWC black leather strap and signed IWC deployant buckle.

Silver-white dial accented by applied gold-tone Arabic numerals, matching hands, and a fine minute track. The chronograph layout includes a 30-minute counter at 12 o’clock and a small seconds display at 6 o’clock.

The Portugieser collection was originally inspired by oversized marine chronometers from the 1930s, giving the watch its clean dial layout and highly legible design.

Fully inspected and authenticated by our in-house watchmaker, this timepiece runs properly and is ready to wear and enjoy.

Product Details

General Specifications

• Brand: IWC
• Type: Wristwatch
• Model: Portugieser Chronograph
• Reference: IW371445
• Year / Era: 2010's - Modern
• Gender: Men's
• Country of Manufacture: Switzerland

Dial & Display

• Display: Analog
• Color: Silver / White
• Features: Applied Arabic numerals, small-seconds, chronograph sub-dials, minute track

Movement

• Type: Self-winding
• Caliber: IWC caliber 79350
• Jewels: 31
• Movement Functions:
  • Chronograph function
  • Large central chronograph second hand
  • Small-second hand
  • 30-min counter
• Power Reserve: Approx. 44 hours
• Frequency: 28,800 vph

Case & Band

• Material: Stainless steel
• Case Shape: Round
• Bezel: Fixed, smooth
• Crystal: Sapphire
• Back: Screw-back
• Crown: Signed IWC crown
• Band Type: Original black leather strap
• Case Back Markings: International Watch Co. 3890169

Case Measurements (mm)

• Case Size: 41

Additional Info

• Box & Papers: NO
• Condition: The watch is in very good condition, with a solid case, bezel, and dial.
• Notes: Fully inspected and authenticated by our in-house watchmaker, confirming that it runs accurately.

History & Legacy of IWC

Founded in 1868 by American watchmaker Florentine Ariosto Jones, IWC was built around a simple but ambitious idea: bringing together American industrial efficiency and traditional Swiss craftsmanship.

Over the years, IWC earned a strong reputation for producing precise, purpose-built tool watches — especially pilot’s watches. One of the brand’s most historic contributions came during the 1940s, when IWC produced the legendary oversized “B-Uhr” navigation watches, now considered some of the most iconic military aviation timepieces ever made.

About Second Hand Horology

At SECOND HAND HOROLOGY, we offer a curated selection of watches ranging from vintage to modern, including both brand-new and pre-owned timepieces. We are committed to quality, accuracy, and integrity. Our listings feature professional, unedited photography and clear, transparent descriptions.

Every watch is thoroughly inspected and securely packaged to ensure a confident and seamless buying experience. We warmly invite you to visit our physical shop and explore the collection in person.

Contact Us

We appreciate you checking out our listing! Don’t hesitate to reach out with questions, offers, or simply to talk watches — we truly enjoy connecting with fellow enthusiasts.

Thank you for your business. We genuinely appreciate your support and look forward to serving you again in the future.

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