Omega · Seamaster Diver 300M
Strap for Seamaster Diver 300M Quartz 28 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 2382.20.00 (aka: 23822000)
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 2382.20.00 (aka: 23822000), seen from the bench
Frequently asked questions
What is the lug width of the Omega Seamaster Diver 300M 2382.20.00?
The lug width of the Seamaster Diver 300M reference 2382.20.00 is 20 millimetres. This dimension refers to the distance between the two pins that secure the strap to the case. To verify the measurement, gently extract a pin from its housing and measure the internal space: it should be exactly 20 mm.
Which strap is best suited for the Omega Seamaster Diver 300M 2382.20.00?
The ideal strap depends on the intended use. For formal wear, choose a black or dark brown alligator with a white gold deployant clasp: it enhances the two-tone case without distraction. For elegant everyday wear, opt for vegetable-tanned calf in burgundy or cognac shades. For those wishing to maintain the sport diving spirit, shell cordovan or technical vulcanised rubber offers moisture resistance and practicality.
How do I change the strap on my Seamaster Diver 300M 2382.20.00?
Remove the pins from the housing using a spring bar tool (precision tool provided or available from retailers). Secure the watch in a stable position, extract the pin from its seat without scratching the case, then slide the old strap out of the opening. Insert the pins into the new strap and secure it to the lugs with gentle pressure until the locking click is heard.
Can I use aftermarket compatible straps on my Seamaster Diver 300M 2382.20.00?
Absolutely. Any strap with a 20mm lug width is mechanically compatible with the 2382.20.00. Artisanal straps from Milano Straps, crafted with premium leathers and quality details, represent an aesthetic and tactile upgrade over the original bracelet, while maintaining full compatibility and fastening security.
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 artisanal vegetable-tanned alligator, worn daily in temperate climate, offers 3-4 years of optimal aesthetic service, developing a noble patina. Quality calf leather lasts 2-3 years. Factors such as humidity, direct sun exposure and frequency of use accelerate ageing. Casati Milano atelier guarantees 18 months on craftsmanship, but the strap will continue to age nobly even beyond that.
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

