Strap for Seamaster Diver 300M Automatic 36.25 Stainless Steel / White Gold / Black / Bracelet

The Omega Seamaster Diver 300M reference 2236.50.00 is equipped with a 20 millimeter lug width. This measurement identifies the width of the space between the two lateral lugs of the case and is the determining parameter for aftermarket strap compatibility. Measuring the lug width with precision is essential: use a digital caliper positioned between the lugs at the lower part of the case. Only straps specifically manufactured for 20mm width will guarantee correct fit without play or forcing.

For the two-tone Seamaster 2236.50.00 (white gold and steel), the dark brown alligator strap represents the choice of aesthetic excellence, enhancing the refinement of precious metals. If you prefer a more sporty profile, vegetable-tanned calfskin offers fascinating patina over the years. To effectively take advantage of the certified 300-meter water resistance, 2 millimeter vulcanized rubber provides thermal insulation and maximum practicality in humid environments. Fabric NATO is ideal for daily versatility while maintaining elegance.

To change the strap, you must remove the two lateral lugs (spring bars) that hold the original strap. Use a specialized tool (spring bar tool) to gently compress the internal spring of each lug, allowing extraction from the case. Position the new strap by aligning the holes with the lugs, then reinsert the lugs by pushing until you hear the spring click back into place. If you are not experienced with this operation, entrust it to a professional watchmaker to avoid damage to the case.

Absolutely yes. The Seamaster Diver 300M 2236.50.00, like many Omega models, accepts aftermarket straps of construction quality equal to or superior to the original, provided that the lug width is exactly 20 millimeters. Alligator, calfskin, shell cordovan, NATO and rubber straps are compatible. Always verify that the supplier clearly specifies compatibility with 20mm lug width and that the construction quality (stitching, finishing, materials) meets the standards of your timepiece.

The lifespan of a leather strap depends on the intensity of use, environmental conditions, and the construction quality of the material. A premium alligator or calfskin can last 5-10 years with regular use and proper maintenance (drying after water exposure, periodic conditioning with products specific to leather). Vulcanized rubber, more resistant to chemicals and humidity, can exceed 10-12 years. Critical factors are: avoid permanent creases, protect from direct heat sources, dry promptly after exposure to salt water, and occasionally apply conditioning creams for noble leathers such as alligator and shell cordovan.