Omega · Seamaster Diver 300M
Strap for Seamaster Diver 300M Automatic 41 White Gold / Skeleton / Bracelet / 50th Anniversary
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Seamaster Diver 300M 2932.80.00 (aka: 29328000)
Selected for the 20 mm lug width · workshop selection
Military Red Alligator Strap with Blue Stitching€183
Black and Red NATO Strap — Military Heritage€183
Black Crocodile Military Strap with Blue Stitching€183
Black Calfskin NATO Strap 20mm€80
Dark Brown Calfskin Military Strap€80
The Seamaster Diver 300M 2932.80.00 (aka: 29328000), seen from the bench
Frequently asked questions
What is the lug width of the Omega Seamaster Diver 300M 2932.80.00?
The lug width of the Seamaster Diver 300M 2932.80.00 is 20mm. This measurement complies with Omega's standard for this model and is compatible with all handcrafted 20mm straps available on the market. To verify the measurement, you can consult the factory documentation or directly measure the distance between the lugs of the case with a caliper.
What is the best strap for the Omega Seamaster Diver 300M in white gold?
For the Seamaster Diver 300M in white gold, French alligator represents the finest choice: the natural grain of the scales enhances the luminosity of the precious metal and guarantees patina over time. Alternatively, vegetable-tanned calf leather in cognac or tobacco shades offers a balance between refined aesthetics and resistance to hot climates. For intensive underwater use, silicone rubber in black or blue provides versatility without compromising technical functionality.
How do you change the strap on the Omega Seamaster Diver 300M?
Changing the strap on the Seamaster Diver 300M is straightforward: position the watch with the strap facing upward, locate the small metal protrusions (called lugs) where the strap connects. Use a dedicated tool (spring bar tool) to depress the internal spring, remove the old strap and insert the new one, ensuring the internal spring is securely seated. Always verify that the new strap has the correct 20mm lug width.
Is an aftermarket strap compatible with the Omega Seamaster Diver 300M 2932.80.00?
Yes, any handcrafted strap with a 20mm lug width is fully compatible with the Seamaster Diver 300M 2932.80.00. High-quality aftermarket straps do not compromise the functionality or aesthetics of the watch, provided they are made with noble materials such as alligator, vegetable-tanned calf, shell cordovan or silicone rubber. Always verify the lug width before purchasing.
How long does a leather strap last on the Omega Seamaster Diver 300M?
The lifespan of a leather strap depends on the material and usage: an alligator or vegetable-tanned calf strap, with regular maintenance, lasts 3 to 5 years of daily wear. Silicone rubber, on the other hand, tends to degrade after 4-6 years, while shell cordovan can last 7-10 years if stored in proper conditions. Prolonged exposure to water, direct sunlight and humidity reduces longevity. Atelier Casati Milano provides an 18-month warranty on all handcrafted straps.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

