Strap for Portugieser Hand-Wound Monopusher Laureus

The lug width of the IWC Portugieser IW5153-01 is 22 millimetres. This measurement is taken between the two lugs that attach the strap to the watch case. Always verify the lug width by examining the inside of the original strap or consulting the official IWC documentation before purchasing an aftermarket compatible strap.

For the IW5153-01, the most recommended materials are: alligator with vegetable tanning for classic elegance and natural patina development over time, shell cordovan for unique grain and colour evolution, calf leather with integrated deployante for daily practicality, FKM rubber for aquatic or intense sporting use. Your choice depends on the intended use and personal aesthetic preference.

Strap replacement is performed by manipulating the small pins (spring bars) that connect the lugs of the strap to the case. Using a dedicated tool (spring bar tool) or by visiting a professional watchmaker, gently remove the pin from the case, extract the old strap and insert the new strap, ensuring the pin diameter matches the 22mm lug width. It is recommended to contact an IWC service centre or qualified watchmaker to avoid damage to the case.

Yes, the IWC Portugieser IW5153-01 is compatible with any aftermarket strap featuring an exact 22mm lug width. Online you will find a wide selection of artisanal 22mm straps customisable in premium materials, colours and stitching, as well as the option to create bespoke straps at specialised ateliers for a truly personalised experience.

The lifespan of a leather strap depends on leather quality, intensity of use and environmental conditions. A high-quality alligator or shell cordovan strap can last 8–12 years with moderate use and regular maintenance. A calf leather strap typically lasts 5–8 years. Excessive moisture exposure, intense perspiration and direct sunlight significantly shorten strap longevity. Periodic professional maintenance with dedicated leather products considerably extends durability.