Strap for OutDoor 39 Protect Stainless Steel / Red / Leather

The Archimede Outdoor UA8239-A6.1-H features a 20mm lug width. This dimension is standard for this specific variant of the Outdoor model and determines compatibility with aftermarket straps. To measure the lug width accurately, place a digital calliper between the upper and lower attachment pins of the case, perpendicular to the case plane.

The ideal strap for this configuration depends on intended usage. A high-quality leather strap—preferably alligator or vegetable-tanned calf—enhances the austere character of the watch while maintaining everyday elegance. Alternatively, a polyamide NATO strap or technical elastomer offers maximum tactical practicality. For hiking and humid environments, FKM rubber ensures superior chemical and biological resistance.

Strap replacement is performed by extracting the lateral pins that connect the strap to the case. Use a springbar tool, available from watchmakers or supplied with quality straps. Position the tool under the pin from the lower side of the lug, apply gentle pressure to compress the internal spring, and slide the pin outward. Repeat on the opposite side. Install the new strap by reversing the procedure, ensuring pins are fully inserted and the spring loads correctly.

All straps with 20mm lug width are compatible with the UA8239-A6.1-H. MilanoStraps.it offers a comprehensive collection of 20mm straps in different materials: natural leather (alligator, calf, crocodile), NATO fabrics, technical elastomers and FKM rubber. Each strap is available in colour variants coordinated with the stainless steel case tones.

A vegetable-tanned leather strap, subjected to ordinary maintenance (drying after moisture, protection from direct heat), maintains aesthetic and functional integrity for 3-5 years of daily use. Lifespan depends on intensity of use, climatic conditions, and tanning quality. Alligator or shell cordovan straps, characterised by denser fibres, can exceed 7-8 years. Rubber and synthetic materials guarantee greater longevity but require UV supervision.