Strap for Speedmaster Date 40 Stainless Steel / Grey / Bracelet

The Omega Speedmaster 323.30.40.40.06.001 features a lug width of 19mm. This measurement is taken between the upper lugs of the case and represents the standard dimension for selecting a compatible strap. Always verify the measurement with a ruler positioned horizontally on the top of the case, between the two lugs.

For this reference with satin-finished steel case, we recommend alligator with vegetable tanning or shell cordovan. Both materials offer a texture that elegantly complements the satin surface of the case without competing visually. Structured calf leather represents an economical alternative while maintaining correct aesthetic proportions.

Strap replacement requires a specific tool to extract the spring bars. Position the watch with the lugs facing upward, insert the small hook of the tool into the lateral hole of the spring bar, apply light pressure to release the spring bar from its seat, then extract it completely. Repeat on the other side. Insert the new strap by aligning the holes with the spring bars, then reinsert the spring bars into their respective seats until you hear the locking click.

Yes, all straps with a 19mm lug width are compatible with the Omega Speedmaster 323.30.40.40.06.001. MilanoStraps offers a complete collection of artisanal straps in 19mm size, customizable in material, color, and finishing details. Before purchase, verify that the strap has standard 19mm spring bars.

The lifespan of a leather strap depends on the quality of the material, frequency of use, and climatic conditions. An alligator or shell cordovan strap with vegetable tanning, if subjected to regular maintenance (gentle cleaning and drying after moisture exposure), maintains structural functionality for 5-7 years. The visible patina that forms is part of the natural aging process and adds character to the strap. MilanoStraps offers an 18-month warranty on artisanal straps.