Strap for Portugieser Chrono-Automatic White Gold / Black / Diamond

The lug width of the Portugieser IW3714-26 is precisely 20.00 millimetres. This measurement represents the internal space between the two attachment pins on the white gold case. To verify strap compatibility, it is essential to measure this distance with a digital calliper, as even minor discrepancies (19.8 mm or 20.2 mm) would result in wearing discomfort and risk of case damage during strap changes.

For the Portugieser IW3714-26, alligator represents the most balanced choice: the pronounced texture and geometric structure of the quarterings enhance the white gold's sobriety without conflicting with formal aesthetics. Alligator in dark tones (black or dark brown) is particularly recommended, as it amplifies the methodical seriousness that characterises the entire timepiece. Alternatively, shell cordovan offers profound patina development over time and initial rigidity that evolves towards superior softness.

Strap replacement requires a specific tool (spring bar tool) or professional intervention. You must gently compress the bayonet springs located at either side of the attachment pins, allowing extraction of the old strap. Once removed, the new strap (with 20 mm lug width) is inserted by pressing the pins into their respective housings until they click into place. Given the precious white gold case, it is strongly recommended to entrust this operation to a specialised atelier such as Casati Milano to avoid damage.

Yes, any strap with precisely 20.00 mm lug width is compatible with the IW3714-26. However, it is advisable to choose reliable manufacturers that guarantee construction precision in the pin housings. The 20mm straps available on milanostraps.it have been verified for compatibility with the Portugieser and offer customisation in length, initials and stitching thread colour.

The lifespan of a leather strap varies significantly based on material and usage conditions. Quality alligator, worn daily, maintains structural integrity for 3-5 years before the ends show wear. Shell cordovan, thanks to its dense fibre structure, can reach 5-7 years. A vegetable-tanned calf strap evolves continuously, displaying visible patina within the first months. To extend durability, it is advisable to rotate between multiple straps (avoiding daily wear of the same one) and protect the leather from excessive moisture.