Strap for Seamaster Diver 300M Automatic 44 Racing Chronometer Stainless Steel / Black / Rubber

The lug width of the Seamaster Diver 300M 2569.52.00 is precisely 20mm. This dimension is measured from the inner tip of one lug to the other, at the case shoulders at 12 o'clock and 6 o'clock. A compatible strap must fit without lateral play and the spring bar must close without forcing.

For this model we recommend three options: vegetable-tanned alligator for formal look and visible aging; smooth calf for daily versatility and comfort; technical rubber or NATO for water resistance and intense sports use. Your choice depends on your personal style and conditions of use.

Position the watch with the dial facing down on a soft surface. Locate the lugs and insert the spring bar remover (or a thin stick) into the small hole beneath the lug to compress the internal spring. Release the old strap and insert the new one. The operation takes 2-3 minutes per side. If you are unsure, consult an expert.

Yes, provided the strap is authentically 20mm and the lugs are compatible with your specific model (not all 44mm Omegas have identical lugs). Always verify the fit before purchase: the strap must enter perfectly without lateral loosening. Milano Straps offers certified 20mm straps compatible with this reference.

A quality leather strap (alligator, vegetable-tanned calf) lasts 2-5 years with daily wear and proper maintenance. Duration depends on: frequency of immersion in fresh water, UV exposure, personal perspiration and regular cleaning. Technical rubber and NATO last longer (5-10 years) with less sensitivity to external agents.