Omega
Speedmaster Reduced 3802.70.56— lug 18mm

The lug width is 18mm, a specific measurement for this model. To verify it, measure with a ruler the distance between the internal terminals of the lugs where the strap attaches. This dimension ensures balanced proportions of the 39mm case.

For formal elegance choose black alligator with grey stitching; for natural patina evolving over time, cognac shell cordovan; for urban versatility, vegetable-tanned calf in bordeaux; for sports functionality, dark grey NATO with black hardware. It depends on your primary use context.

Use a spring bar removal tool or a small screwdriver. Position the watch with the lug to be removed facing upward. Apply gentle pressure by pushing the lug retention spring inward. Remove carefully. Repeat for the opposite lug. Install the new strap in reverse sequence, ensuring the spring is fully seated.

All straps with 18mm lug width are compatible, regardless of brand. Always verify the width before purchase. Online you will find options in leather, rubber, and fabric custom-made for this specific width.

Durability depends on the tanning method and usage. A quality artisanal alligator or shell cordovan resists 4-6 years under moderate daily wear conditions. Vegetable tanning tends to last slightly less but develops more visible patina. Regular maintenance with neutral wax extends the strap's lifespan by 30-40%.