Woven Leather Strap for IWC Portugieser, Portofino, Spitfire, Mark 18 – 20mm,22mm

Description

There is a category of watch strap that exists between leather and textile — not entirely one material, not the other, but the craft of one worked through the technique of the other. Woven leather occupies that category: genuine leather strips interlaced into a structured, breathable pattern that reads as textural and artisanal rather than smooth or plain. The IWC Portugieser / Portofino / Spitfire / Mark 18 Woven Leather Strap brings that material to four of IWC’s most characterful references — in 20mm and 22mm, at 115mm + 75mm, with your choice of folding or pin buckle at 18mm. A strap that shows its making.

Leather Strips. Woven Construction. The Strap That Shows Its Craft.

• Woven leather — the construction that earns attention at close range — a smooth leather strap reads as a background element; a woven one reads as a considered choice. The interlaced strips create a pattern with depth and texture visible from arm’s length and tactile at the wrist — a surface that changes character in different light and develops in a way that flat leather cannot, as the individual strips soften and the weave settles over time. It ages as a whole rather than as a single surface, and the result is a strap that looks progressively more intentional the longer it’s worn.
• Breathable construction — woven leather’s practical advantage — the gaps between woven strips allow air circulation against the wrist that solid leather prevents entirely. On warm-weather wear or active daily use, this translates directly into comfort: less heat retention, less moisture accumulation, and a more pleasant surface against the skin during long hours of wear. The Portofino in summer and the Spitfire on a warm airfield day both benefit from the difference.
• 20mm and 22mm — the widths at both ends of the IWC range — the Portugieser and Portofino typically run at 20mm; the Spitfire and Mark 18 at 22mm across their references. Both widths are available in woven leather, each cut correctly to the case dimension and carrying the woven pattern consistently to the lug edge.
• 115mm + 75mm — correctly proportioned for these references — the 115mm long side and 75mm short section cover the standard wrist range across all four references, with the 75mm short side providing comfortable adjustability without excess tail through the keeper.
• Folding buckle or pin buckle at 18mm — on woven leather, the pin buckle maintains the artisanal, understated character of the material; the folding buckle adds the strap-preservation benefit that is particularly valuable on a woven construction where the tip is a more complex structure than flat leather to repair or replace.

For the IWC Owner Who Wears the Strap as Deliberately as the Watch.

Woven leather is a choice that requires intent. It is the strap for the Portugieser owner who has exhausted the obvious leather options and wants something more considered; for the Portofino owner who wants a warm-weather strap with more character than plain rubber; for the Spitfire and Mark 18 owner who wants to add a craft-leather dimension to a pilot-watch rotation that already includes canvas and rubber. It is, in each case, the choice that reveals something about the owner’s relationship with the watch.

This strap is the right choice for:

• Portugieser and Portofino owners who want a leather strap with visual and tactile depth beyond the smooth surfaces that standard leather provides — woven leather adds character without abandoning the material category.
• Warm-weather wearers who want the look and character of leather without the heat retention of a solid surface — the woven construction’s breathability solves that directly.
• Spitfire and Mark 18 owners extending a pilot-watch strap rotation beyond canvas and rubber into a craft-leather option that carries its own distinct visual language.
• Collectors who prioritise strap craftsmanship — woven leather is one of the more labour-intensive strap constructions available at the aftermarket level and rewards the owner who appreciates how it’s made.

Specifications

Woven leather, two widths, four IWC references. Add to cart and wear the craft.