Strap for Speedmaster Professional Moonwatch

The Omega Speedmaster Moonwatch 3590.50.00 has a lug width of exactly 20mm. This measurement is critical for strap compatibility; you can verify it with a digital caliper positioned perpendicular to the metal lugs. Contact us for confirmation before making a purchase.

There is no single answer, but three directions aligned with the Speedmaster's identity: Nile alligator for uniform formal patina, vegetable-tanned calf for natural chromatic evolution, or NATO canvas for fidelity to its military-civilian instrument DNA. The satin-brushed steel case pairs best with straps that do not compete for attention, prioritizing construction quality and sober texture.

The Speedmaster uses standard 20mm spring bars, visible by inserting a watchmaker's lever tip into the lateral spaces between the case and strap. The procedure requires: inserting the lever under the spring bar end, applying light pressure until the bar retracts, sliding off the old strap, inserting the new one into the open lug holes, and ensuring the bar clicks into place. It is advisable to have a professional assist you the first time.

Yes. Any 20mm strap is compatible with the 3590.50.00 lugs. We recommend verifying that the strap has comparable construction quality—regular stitching, clean shoulder finishing, robust natural or synthetic materials—since the Moonwatch deserves an integration respectful of its heritage. Milanostraps offers a selection of artisanal straps tested for this model.

A quality leather strap (alligator, calf, cordovan) typically lasts 3–5 years with moderate daily use, if subject to regular maintenance (cleaning, conditioning). Longevity depends on ambient humidity, frequency of use, direct sun exposure, and tanning method: vegetable-tanned leather tends to darken quickly (a sign of natural aging, not deterioration), while alligator maintains aesthetic stability longer. Rubber straps resist degradation for 5–7 years.