Strap for Seamaster Diver 300M No-Date Master Co-Axial 42 Stainless Steel - Titanium / Grey / Bracelet

The lug width is 20mm (millimetres). This measurement, taken from inside to inside of the case lugs, is the current Omega standard for 42mm Seamaster models. A compatible strap must respect this specification exactly to avoid loose or forced fitment.

Vegetable-tanned alligator represents the pinnacle of craftsmanship: regular scales and tiny pores create an organic lustre that amplifies the steel case's reflection. For diving contexts, shell cordovan or vulcanised rubber with laser welds offer superior resistance to moisture and salt water.

The spring bars (lug bars) of the Seamaster 210.30.42.20.06.002 are removed using a spring bar tool, a steel instrument with a bifurcated end. Position the tool on the sides of the bar, compress the lateral springs and pull: the bar will snap out. Repeat on the other side, then insert the new strap's bars by guiding them into the lugs until they click into place.

Omega produces original straps for this reference, available in sport rubber, leather and steel with deployant clasp. However, milanostraps offers <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-20mm">certified compatible 20mm artisanal straps</a>, crafted in alligator, calf and shell cordovan, with personalisation options for sizing and initials.

A well-maintained vegetable-tanned leather strap lasts 3-5 years in daily use, especially if exposed to moderate moisture. The Seamaster 300M, being a diving watch, exposes the strap to water contact: it is recommended to dry the wrist after bathing and to perform conditioning treatments every 6-12 months to preserve softness and patina.