Strap for Portugieser Chrono-Automatic Bucherer Blue Editions

The lug width of the Portugieser IW3714-88 is precisely 20 millimetres. This measurement is taken internally between the case lugs, excluding the gold material itself. You can verify it using a digital calliper positioned orthogonally between the two strap attachment points.

Genuine alligator in dark brown or burgundy tones represents the classical choice, creating elegant visual contrast with the red gold without competing for visual attention. Alternatively, vegetable-tanned calf leather in cognac shades offers character and purposeful ageing over time, ideal for those who appreciate straps that develop consciously.

Remove the strap using a spring bar removal tool inserted from beneath the lug. Press upward to release the internal tension spring, then extract the spring bar. Repeat on the opposite lug. Install the new strap by reversing the procedure, ensuring the spring bar is fully seated in its pocket.

Yes, any artisanal strap with a 20 millimetre lug width is fully compatible. Always verify the lug width before purchase to avoid constructive misalignments. MilanoStraps straps, hand-crafted, guarantee certified tolerances for this measurement.

A genuine alligator or artisanal quality calf strap, subjected to regular maintenance (soft cloth cleaning, drying, and occasional conditioning with specific waxes), lasts between 4 and 7 years of daily wear. Longevity depends on climate, humidity, and frequency of use. Casati Milano straps carry an 18-month materials and construction warranty.