Strap for Speedmaster Date 39 Stainless Steel / Silver / Bracelet

The lug width is 18 millimetres, measured perpendicularly between the spring bar holes. This Omega standard characterises mid-sized chronographs and is fundamental to ensure strap compatibility without gaps or friction in the holes.

It depends on intended use and aesthetic preference. Mississippi alligator is the classic choice for timeless elegance; shell cordovan offers rigidity and vintage lustre; vegetable tanning introduces natural patina over time; fine-grained calfskin allows delicate texture; NATO in cotton-polyester remains pragmatic and washable.

Insert a spring bar tool into the attachment holes, press gently upward to release the spring, and remove the spring bar. Position the new strap by aligning it to the holes, then reinsert the spring bars until they lock into place. Proceed carefully to avoid scratching the case.

Yes, provided the lug width is exactly 18 millimetres. Always verify the perpendicular measurement between the holes: 16mm or 20mm straps will not fit correctly. Consult specialised manufacturers that guarantee millimetre precision.

On average 3–5 years with moderate daily use, down to 2 years with frequent perspiration or humid environments. Vegetable tanning ages better, developing patina; calfskin is more delicate. An 18-month warranty is standard in the industry. Seasonal rotation and regular cleaning significantly extend useful life.