Genuine Bison Brown Leather Watch Band, Made in USA - IWC Portugieser 40 (21mm)
Give your IWC Portugieser 40 a rugged, heritage-rich upgrade with this Genuine American Bison Brown Leather Quick-Release Strap. Handcrafted in the USA from full-grain bison hide, each strap showcases a naturally varied texture that develops a deep, story-filled patina over time. The unique grain structure brings a bold yet refined character that pairs surprisingly well with the IWC Portugieser 40 iconic design.
The supple feel and earthy brown tone add just the right amount of western-inspired personality, balancing everyday wearability with vintage field-watch charm. Whether you’re dressing the IWC Portugieser 40 up for dinner or taking it on a weekend adventure, this strap adds warmth, durability, and unmistakable American craftsmanship to a legendary timepiece.
Fits Models: IWC Portugieser Automatic 40 (Ref. IW358303, IW358304, IW358305) — designed for the 21mm lug width. Compatible aftermarket strap; not affiliated with IWC or Schaffhausen.
Tailored for a Clean 21mm Fit
This version is precisely sized for the 21mm lug width of the IWC Portugieser 40, ensuring a balanced, integrated fit that complements the watch timeless proportions.
Quick-Release Convenience
Built with our signature quick-release spring bars, the strap installs in seconds faster than you can pour a pint. Easily swap between bison leather, silicone, canvas, or alligator to match your day, mood, or mission.
Rugged, distinctive, and crafted to age beautifully, this American Bison strap delivers both durability and style. It's tough enough for the trail and refined enough for downtown The Strap Your Watch Deserves.
Specs
Swap in Seconds: Integrated quick-release spring bars
Color: Brown leather with brown stitching
Material: Genuine American Bison
Hardware: 316L stainless steel
Length: 8" (fits wrists 5.5" to 8")
Width: 21mm
Give your IWC Portugieser 40 a rugged, heritage-rich upgrade with this Genuine American Bison Brown Leather Quick-Release Strap. Handcrafted in the USA from full-grain bison hide, each strap showcases a naturally varied texture that develops a deep, story-filled patina over time. The unique grain structure brings a bold yet refined character that pairs surprisingly well with the IWC Portugieser 40 iconic design.
The supple feel and earthy brown tone add just the right amount of western-inspired personality, balancing everyday wearability with vintage field-watch charm. Whether you’re dressing the IWC Portugieser 40 up for dinner or taking it on a weekend adventure, this strap adds warmth, durability, and unmistakable American craftsmanship to a legendary timepiece.
Fits Models: IWC Portugieser Automatic 40 (Ref. IW358303, IW358304, IW358305) — designed for the 21mm lug width. Compatible aftermarket strap; not affiliated with IWC or Schaffhausen.
Tailored for a Clean 21mm Fit
This version is precisely sized for the 21mm lug width of the IWC Portugieser 40, ensuring a balanced, integrated fit that complements the watch timeless proportions.
Quick-Release Convenience
Built with our signature quick-release spring bars, the strap installs in seconds faster than you can pour a pint. Easily swap between bison leather, silicone, canvas, or alligator to match your day, mood, or mission.
Rugged, distinctive, and crafted to age beautifully, this American Bison strap delivers both durability and style. It's tough enough for the trail and refined enough for downtown The Strap Your Watch Deserves.
Specs
Swap in Seconds: Integrated quick-release spring bars
Color: Brown leather with brown stitching
Material: Genuine American Bison
Hardware: 316L stainless steel
Length: 8" (fits wrists 5.5" to 8")
Width: 21mm
Original: $129.99
-65%$129.99
$45.50Description
Give your IWC Portugieser 40 a rugged, heritage-rich upgrade with this Genuine American Bison Brown Leather Quick-Release Strap. Handcrafted in the USA from full-grain bison hide, each strap showcases a naturally varied texture that develops a deep, story-filled patina over time. The unique grain structure brings a bold yet refined character that pairs surprisingly well with the IWC Portugieser 40 iconic design.
The supple feel and earthy brown tone add just the right amount of western-inspired personality, balancing everyday wearability with vintage field-watch charm. Whether you’re dressing the IWC Portugieser 40 up for dinner or taking it on a weekend adventure, this strap adds warmth, durability, and unmistakable American craftsmanship to a legendary timepiece.
Fits Models: IWC Portugieser Automatic 40 (Ref. IW358303, IW358304, IW358305) — designed for the 21mm lug width. Compatible aftermarket strap; not affiliated with IWC or Schaffhausen.
Tailored for a Clean 21mm Fit
This version is precisely sized for the 21mm lug width of the IWC Portugieser 40, ensuring a balanced, integrated fit that complements the watch timeless proportions.
Quick-Release Convenience
Built with our signature quick-release spring bars, the strap installs in seconds faster than you can pour a pint. Easily swap between bison leather, silicone, canvas, or alligator to match your day, mood, or mission.
Rugged, distinctive, and crafted to age beautifully, this American Bison strap delivers both durability and style. It's tough enough for the trail and refined enough for downtown The Strap Your Watch Deserves.
Specs
Swap in Seconds: Integrated quick-release spring bars
Color: Brown leather with brown stitching
Material: Genuine American Bison
Hardware: 316L stainless steel
Length: 8" (fits wrists 5.5" to 8")
Width: 21mm
