Omega · Seamaster Diver 300M
Strap for Seamaster Diver 300M Quartz 36.25 Stainless Steel / Yellow Gold / White / Bracelet
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 2462.20.00 (aka: 24622000)
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 2462.20.00 (aka: 24622000), seen from the bench
Frequently asked questions
What is the exact lug width of the Omega Seamaster Diver 300M 2462.20.00?
The lug width is 20 mm. This dimension is standard across the entire Seamaster Diver family of this generation. To verify it, remove the original strap and measure the internal space between the two lugs with a caliper: the value must be exactly 20 mm. An 18 mm strap will not fit, and a 22 mm strap will be loose and dangerous for the watch's stability on your wrist.
Which leather strap is most suitable for the two-tone Seamaster Diver 300M gold-steel?
Cognac or black alligator is the aristocratic choice: compact grain that captures light like metal, and ennobling patina with wear. Vegetable-tanned brown or black calf offers pronounced grain and superior water resistance. Deep burgundy shell cordovan is the solution for purists: extreme density and patina that becomes increasingly rich over time. All these materials are available in 20 mm size.
How do you change the strap on an Omega Seamaster Diver 300M 2462.20.00?
The Seamaster Diver uses a standard spring bar system. Remove the watch from the original strap by gently pushing the spring bar inward and sliding it out. Insert the spring bar into the new 20 mm strap, ensuring it is perfectly seated in both slots. Verify that the strap has no lateral play once inserted: the Omega must position itself stable and centered. Never apply excessive force; a correct spring bar enters with slight resistance and clicks perceptibly.
Can I use a 20mm aftermarket strap on a Seamaster Diver 300M 2462.20.00?
Yes, all 20 mm aftermarket straps are compatible with the 2462.20.00. However, Omega lugs are notably precise: verify that the strap has no lateral play once mounted, and that the stitching is robust, especially if you intend to dive. Custom artisanal straps guarantee superior manufacturing tolerances to mass-market straps, with slots perfectly calibrated for Omega lugs.
How long does a leather strap last on a watch frequently immersed like the Seamaster Diver?
An alligator or calf strap will last 2-4 years with frequent diving and subsequent fresh water rinses. Shell cordovan, being denser, can resist 4-6 years thanks to lower moisture absorption capacity. After each immersion, rinse the strap in gentle fresh water, dry it completely with a soft cloth, and let it air dry. Tropic rubber straps last 5-8 years even with daily diving. Oiling with a natural leather product every 6 months significantly extends the strap's lifespan.
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

