IWC
Portugieser IW3714-03— lug 20mm

The Portugieser IW3714-03 features a lug width of 20 millimetres. This dimension represents the internal distance between the two metal lugs of the case. The ideal fitting tolerance is between 19.8 and 20.2 millimetres to ensure perfect accommodation without mechanical play.

For the Portugieser IW3714-03, alligator leather is recommended for classical use, shell cordovan for those seeking an evolving patina over time, or premium calfskin with vegetable tanning for versatility. Technical rubber fluoroelastomeric straps remain ideal for aquatic environments and sports use. The choice depends on intended usage and personal aesthetic preference.

Changing the strap on a Portugieser IW3714-03 is accomplished by removing the lug pins using a dedicated pin removal tool or professional instrument. The lugs feature straight shoulders without particular deflectors, making the operation relatively straightforward for those possessing the proper tools. Professional guidance is advisable to avoid scratching the white gold case or damaging the lugs.

Yes, all straps manufactured for the 20 millimetre lug width are compatible with the Portugieser IW3714-03, provided they respect the precise millimetric tolerance of 20 mm (range 19.8-20.2 mm). Bespoke artisanal straps represent an excellent choice to further enhance the elegance of this white gold model, allowing personalisation according to individual style and usage requirements.

A premium quality natural leather strap, if properly maintained and dried following moisture exposure, can last between five and eight years of regular use. Longevity depends on the tanning method employed: shell cordovan and vegetable-tanned straps age considerably better and develop an elegant patina. Primary wear occurs at the lugs and attachment edge; superior stitching and robust construction significantly extend the strap's service life.