Strap for Speedmaster First Omega in Space Master Chronometer Stainless Steel / Blue-Grey

The lug width of the Omega Speedmaster First Omega in Space 310.32.40.50.06.001 is 19 millimeters. This measurement is crucial for selecting a compatible strap: an 18mm strap will leave gaps at the lugs, while a 20mm strap will not fit physically into the case. The <a href="/pages/termine-glossario/misura-ansa">lug width</a> is measured perpendicularly between the inner shoulders of the two lugs, a critical point for total compatibility.

The best choice depends on the intended use. For formal contexts, black <a href="/pages/termine-glossario/alligatore">alligator</a> with a steel <a href="/pages/termine-glossario/deployante">deployante</a> amplifies prestige without sacrificing the inherent sportiness of the case. For elegant daily wear, <a href="/pages/termine-glossario/concia-vegetale">vegetable-tanned</a> calf develops patina over time and acquires aesthetic depth. For maximum functionality, navy blue NATO mirrors the dial's color theme and red lollipop hand. The 19mm straps from Milanostraps offer all these alternatives, customizable in size, color, and buckle type.

Strap replacement requires minimal tools: a spring bar tool specific to watches. Proceed as follows: position the watch with the lugs parallel to the table, gently insert the tip of the spring bar tool into the opening of the upper lug, pushing downward until the spring releases from its seat, remove the strap, repeat for the other lug. Insert the new strap by aligning the passants to the lugs, pushing the springs until they lock into their seats. Verify that both sides are perfectly seated before wearing the watch. If you are not experienced, contact the Casati Milano atelier for professional support.

Yes, all straps with a <a href="/pages/termine-glossario/misura-ansa">lug width</a> of 19mm are compatible with this reference. Milanostraps offers a complete selection of artisanal <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-19mm">19mm straps</a> constructed with premium leathers (<a href="/pages/termine-glossario/alligatore">alligator</a>, calf, <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a>) and finishes in brushed steel or gold. Compatibility also includes vintage Speedmaster models if they have the same lug width.

Durability depends on leather quality, daily use, and maintenance. A calf or <a href="/pages/termine-glossario/alligatore">alligator</a> strap of Casati Milano quality, worn daily, lasts 3-5 years before the passant begins to fail or the leather thins excessively. With occasional maintenance (cleaning with a soft cloth, conditioning every 6 months), durability extends to 7-8 years. <a href="/pages/termine-glossario/shell-cordovan">Shell cordovan</a>, being more resistant, reaches 10+ years. Synthetic NATO straps, meanwhile, last indefinitely. Casati Milano provides an 18-month warranty on all artisanal straps, covering manufacturing defects and tanning issues.