The IWC Portugieser Chronograph Edition “150 Years” IW371602 is the white-dial, stainless-steel version of the limited-edition Portugieser chronograph. It pairs a 41 mm case with IWC’s automatic calibre 69355, a black alligator leather strap and 3 bar water resistance. IWC’s Jubilee collection brochure lists 2,000 watches for this reference.
What is the IWC IW371602?
IW371602 identifies the white-dial stainless-steel version of IWC’s Portugieser Chronograph Edition “150 Years.” The reference is distinct from IW371601, the blue-dial version listed separately in IWC’s Jubilee collection brochure. IWC’s product page describes the anniversary-year chronograph as featuring, for the first time, a movement from the IWC-manufactured 69000 calibre family.
The watch has a black alligator leather strap. Its chronograph displays elapsed minutes and seconds, while the small seconds hand has a stop function.
How limited is the “150 Years” edition?
IWC’s official “Past and Present” brochure lists IW371601 and IW371602 as limited to 2,000 watches each. The figure is per reference, not a combined total for the two dial versions. The brochure’s publication date is not confirmed.
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- Inspired by classic American machinery, the Machine watch commands attention with its bold knurled topring. Unmistakably masculine with a bold 44mm case housing a brushed gunmetal dial with textured details, all protected by a mineral crystal face.
- Case & Movement: 44mm case, 22mm band width, scratch resistant mineral crystal, accurate quartz movement with chronograph analog display, imported
- Dial: Round gunmetal stainless steel case with a brushed, textured gray dial.
- Watch Band: Gunmetal durable stainless steel bracelet; links can be removed for a customized fit.
- Water Resistant: Up to 50m (165ft): Wearable for short periods of recreational swimming and showering, but not diving or snorkeling; 5 ATM.
IW371602 specifications
| Specification | IWC-listed detail |
|---|---|
| Reference | IW371602 |
| Case and dial | Stainless steel; white dial |
| Case diameter | 41 mm |
| Case height | 13.1 mm |
| Strap | Black alligator leather |
| Strap width | 20 mm |
| Buckle width | 18 mm |
| Water resistance | 3 bar |
| Movement | Automatic IWC-manufactured calibre 69355 |
| Power reserve | 46 hours |
| Frequency | 28,800 vph (4 Hz) |
| Components and jewels | 194 components; 27 jewels |
| Crystal | Convex sapphire with anti-reflective coating on both sides |
| Case back | See-through back with synthetic sapphire crystal |
| Edition size | 2,000 watches for IW371602, per IWC’s brochure |
Specifications are listed on IWC Schaffhausen’s official IW371602 product page; the edition size is stated in its official “Past and Present” brochure.
What the movement and water-resistance figures mean
Calibre 69355
IWC lists the automatic calibre 69355 with a 46-hour power reserve and a frequency of 28,800 vibrations per hour (4 Hz). These are manufacturer specifications for this reference, not a guarantee of the reserve a particular pre-owned watch will deliver; condition and service history matter when assessing an individual example.
Rank #2
- DURABLE PERFORMANCE – Our most innovative dive-style watch is tested to 100 meters of water resistance and tracks multiple time zones. The Fossil Blue GMT also features a rotating 24-hr bezel, bold oversized crown, and lume indices for easy readability. Made for any adventure. *Not ISO-certified.
- ALL-DAY DURABILITY: 46mm case, 24mm band width, hardened mineral crystal lens resists scratches, GMT movement with GMT analog display echoing craftsmanship of fine watches, men's watch, imported.
- LARGE DIAL STYLE: Round silver and blue stainless steel case with a blue sunray dial and white accents, an ideal analog watch design inspired by classic big face watches.
- DURABLE STEEL BAND: Silver stainless steel bracelet for men's watch and big face watches, secure fold-over clasp; removable links for customized fit; interchangeable with all 24mm Fossil straps.
- ALL-DAY WATER DEFENSE – Water Resistant up to 100m (330ft): suitable for bathing, swimming or snorkeling, but is not resistant enough to withstand scuba diving; 10 ATM, ideal for those who rotate watches
3 bar water resistance
IWC rates the watch at 3 bar. This is a modest water-resistance rating, not a swimming specification. Treat the watch as unsuitable for swimming or diving, and have its seals checked if water exposure is a concern.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to check before buying a pre-owned IW371602
- Confirm the reference and dial. Check that the watch is IW371602 with a white dial, rather than the separately listed blue-dial IW371601.
- Assess condition and service documentation. Ask for clear photographs and any available service records; the reference’s specifications do not establish the condition of a specific watch.
- Check what is included. Establish whether the original box, papers, and other accessories are present, and whether the seller’s description matches the items shown.
- Verify seller provenance. Review seller history and available documentation before relying on a listing’s claims.
- Confirm replacement strap fit. IWC lists a 20 mm strap width and 18 mm buckle width. Width alone does not guarantee compatibility: check the lug-end shape and buckle fit before ordering a replacement.
Secondary-market listings change, and a results-page snapshot cannot establish a fair current value, verified condition, or availability. Compare watches with similar condition, documentation, and included items rather than treating an asking price as a valuation.
Quick Recap
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- 100 Meters Water Resistant and 5 Year Limited Warranty
Rank #4
- Men's luxury timepieces with technical advancements and a sporty style
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- Silver-Tone Stainless Steel Case
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Rank #3
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- Silver-Tone Stainless Steel
- Anti-Reflective Sapphire Crystal
- 200 Meters Water Resistant and 5 Year Limited Warranty
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