Strap for Seamaster Diver 300M Automatic 36.25 Stainless Steel / Electric Blue / Bracelet

The lug width of the Seamaster Diver 300M 2053.80.00 is 20mm. This dimension is determined by the case diameter of 36.25mm and the width of the integrated spring bars. To verify compatibility, measure the distance between the two attachment pins using a digital caliper.

For this model we recommend alligator in dark brown or black tones, which enhances the electric blue dial without overwhelming it. Alternatively, vegetable-tanned calf leather offers softness and a natural patina that ages over time. For frequent diving use, a technical fabric NATO strap ensures quick drying.

The Seamaster Diver 300M 2053.80.00 is equipped with straight-push threaded spring bars. Use a dedicated tool to push the pin from the opposite side, then gently screw on the new strap. If you prefer, Casati Milano offers a strap-change service with on-wrist compatibility verification.

Yes, provided the strap has an exact lug width of 20mm and is made from moisture-resistant materials (tanned alligator, treated calf, or synthetic materials). Milano Straps offers artisanal compatible straps, tested for water resistance and durability, with an 18-month warranty.

A quality leather strap, such as those offered by Casati Milano, typically lasts 3-5 years with daily use, depending on the frequency of moisture exposure and maintenance. Vegetable tanning ages better over time compared to industrial tanning. Periodic maintenance (cleaning, conditioning) significantly extends durability.