Strap for Portugieser Chrono-Automatic White Gold / Blue MOP / Diamond

The lug width of the IW3714-27 is 20 mm. This measurement is taken perpendicularly between the inner shoulders of both lugs, where the strap seats. Verifying this measurement before ordering a strap is essential, as an incorrect width compromises mechanical compatibility and the security of the strap on your wrist.

For the white gold IW3714-27, we recommend alligator with vegetable tanning in warm brown with silk stitching in matching tone: the colour pairing is natural and the patina that develops over time enhances formal elegance. Alternatively, black calf leather with a white gold deployante buckle offers an effective contemporary contrast. For versatile use, a grey charcoal NATO with a brown calf leather keeper tab enables quick transitions between formal and informal contexts.

Strap change is performed with a dedicated tool (spring bar tool or lug lever): position the tool on the small lateral hole of the lug, gently press downward to compress the internal spring, then extract the pin. Repeat for the other lug. When reinstalling the new strap, ensure the pins click into position (you should hear an audible click). Perform this operation on a clean, soft surface to prevent scratching.

Yes, provided the lug width is exactly 20 mm. Artisanal straps may have slightly different thicknesses than original IWC straps, but this does not affect pin compatibility. The critical variable is width: tolerances of ±0.2 mm are acceptable, while larger discrepancies compromise seating. Quality straps in premium leather (alligator, shell cordovan, vegetable-tanned calf) match or exceed the aesthetics and durability of factory straps.

A quality alligator or calf strap with vegetable tanning and artisanal craftsmanship typically lasts 5–8 years with moderate daily use. Variables such as sun exposure, humidity, frequency of use, and maintenance significantly influence longevity. A shell cordovan strap tends to last longer (7–10 years) due to the greater density of the material. Regular maintenance (cleaning, drying after moisture exposure, conditioning with specialist creams) substantially extends the lifespan.