Omega · Seamaster Diver 300M
Strap for Seamaster Diver 300M Quartz 28 Stainless Steel / Blue / 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 2224.80.00 (aka: 22248000)
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 2224.80.00 (aka: 22248000), seen from the bench
Frequently asked questions
What is the lug width of the Omega Seamaster Diver 300M 2224.80.00?
The lug width of the Seamaster Diver 300M 2224.80.00 is 20mm. This dimension represents the distance between the pins of the terminal links of the case and corresponds exactly to the compatible straps available in our catalog. To verify with precision, use a digital caliper to measure the distance between the lugs of your case.
Which strap do you recommend for the Seamaster Diver 300M 2224.80.00?
For the 2224.80.00 we recommend blue or dark brown alligator for uncompromising elegance, vegetable-tanned calf for versatility and natural patina development, or shell cordovan for those seeking premium material with stratified texture. For sporting use, fine-grained technical rubber or NATO canvas at 1.4-1.6mm maintains the diving identity while preserving daily functionality.
How do you change the strap on an Omega Seamaster Diver 300M?
The strap is replaced by removing the two lateral pins of the case using a dedicated tool (spring bar tool). The pins in the Seamaster Diver 300M 2224.80.00 are held by lateral springs: push the pin slightly toward the center of the case, release one spring, extract the pin completely. Repeat for the second side. Insert the new strap by aligning the pins in the lugs and ensure that both springs click into place. We recommend this operation be performed by a specialized service if you lack experience.
Can I use aftermarket straps on a Seamaster Diver 300M 2224.80.00?
Yes, the Seamaster Diver 300M 2224.80.00 accepts aftermarket straps with 20mm lug width. We recommend choosing straps made by specialized craftsmen who understand the aesthetics and technical functionality of this model. Noble materials such as alligator, vegetable-tanned calf, and shell cordovan maintain construction quality and develop over time a patina that tells the story of your watch.
What is the lifespan of a leather strap for a Seamaster Diver 300M?
The lifespan of a leather strap depends on usage and material. A vegetable-tanned calf strap, used daily, has an average lifespan of 3-5 years before requiring replacement. Shell cordovan, due to its denser structure, can reach 6-7 years. Factors such as sun exposure, humidity, and mechanical stress influence longevity. A leather strap develops patina over time, imparting character: subjected to periodic maintenance and appropriate storage, it can last even longer.
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

