Strap for Pilot Chronograph PVD / Black

The lug width of the Archimede Pilot UA7939-C1.1-SW is 20 millimetres. This measurement represents the linear distance between the lugs protruding from the case and is the standard for mid-to-large diameter pilot chronographs. Always verify this dimension before purchasing an aftermarket strap to ensure perfect compatibility.

The best strap depends on intended use and personal preference. For a formal and refined appearance, we recommend alligator or vegetable-tanned calf leather in dark brown or cognac tones. For versatile daily wear, a NATO cotton canvas strap in anthracite grey or earthy brown recreates the tactical character of the model. For water sports, silicone rubber offers complete waterproofing with minimal maintenance. All materials are available in 20mm sizing at milanostraps.it.

To change the strap on a 20mm lug width watch, you need basic tools: a spring bar removal tool and a protected flat surface. Position the watch face down, insert the tool into the spring bar slot, apply gentle pressure to release the pin, and remove the old strap. Align the new strap's holes with the lugs and gently insert the pins until they click into place. If inexperienced, consult a professional watchmaker.

Yes, any 20mm lug width strap is compatible with the UA7939-C1.1-SW, provided the spring bars are of standard diameter (1.5mm for most watches). Milano Straps offers a comprehensive collection of 20mm straps in leather, NATO, and rubber, tested for compatibility and artisanal quality. Always verify technical specifications and contact customer service if in doubt.

The lifespan of a leather strap depends on material, tanning method, and intensity of use. Vegetable-tanned calf leather: 3–5 years with ordinary care. Alligator leather: 5–10 years thanks to structural durability of the scales. Synthetic leather: 2–3 years. To extend longevity, avoid prolonged moisture exposure, protect from intense UV rays, and occasionally use natural conditioners. Milano Straps offers restoration and reconditioning services for vintage straps.

The Archimede Pilot UA7939-C1.1-SW is powered by the ETA 7750 calibre, one of the most reliable and versatile chronograph movements in the industry. This manual-winding mechanism contains 41 rubies, offers a 42-hour power reserve, and guarantees chronograph, date, and day-of-week functions without compromise in precision and reliability.