Strap for Seventies Panorama Date Ruthenium/ Alligator / Folding

The lug width of the Seventies 2-39-47-12-12-04 is 26 mm. This measurement is critical for aftermarket strap compatibility: it must be measured precisely using a digital calliper, perpendicular to the case plane, to ensure the strap seats correctly without slack or excessive tension.

The optimal strap choice depends on intended use and aesthetic preference. For formal elegance, we recommend pearl grey alligator or vegetable-tanned calf leather in dark brown tones. For versatility, a heavyweight canvas NATO strap or FKM rubber maintain the design's contemporary character. Selection must respect the proportions of the 40 mm square case.

To change a watch strap, remove the spring bars from the original strap using a spring bar remover tool. Align the new strap's holes with the case lugs, then secure the spring bars on both sides. This operation is best performed on a clean, stable surface, preferably by a professional watchmaker.

Yes, high-quality aftermarket straps compatible with the 26 mm lug width may be used. Milano Straps provides a complete range of alligator, calf leather, NATO and rubber straps, all specifically sized to ensure proper seating on the case without compromising structural integrity.

A premium leather strap—alligator or vegetable-tanned calf—typically lasts 5-7 years with proper maintenance and balanced wear. Durability depends on exposure to water, humidity and perspiration. FKM rubber straps offer superior longevity and resistance, exceeding 10 years. The natural patina of leather is part of its compelling ageing character.