Omega · Seamaster Diver 300M
Strap for Seamaster Diver 300M Quartz 36.25 Stainless Steel / Red / Bracelet / Marui
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 2562.60.00
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€149
Red Alligator Strap Water Resistant€195
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Military Alligator Green Strap€138
Hammered Calfskin Strap Light Blue€98
The Seamaster Diver 300M 2562.60.00, seen from the bench
Frequently asked questions
What is the correct lug width for the Omega Seamaster Diver 300M 2562.60.00?
The lug width of the Seamaster Diver 300M 2562.60.00 is 20mm. This is the distance measured between the inside of the two spring bar pins. To verify the compatibility of a strap, measure this value with a digital caliper: it must be exactly 20mm with a maximum tolerance of ±0.5mm. A strap with an incorrect measurement will not sit properly on the case.
What is the best strap for the Seamaster Diver 300M 2562.60.00?
The choice depends on use and aesthetic preferences. For formal elegance, we recommend alligator in dark blue or brown tones, which creates harmony with the wave blue dial. For long-term investment, vegetable-tanned calf naturally patinas over time. For authentic underwater use, the anti-algae rubber in blue or black ensures wet grip and UV protection. NATO remains the versatile and accessible option for those who want to switch straps easily.
How do I change the strap on my Omega Seamaster Diver 300M 2562.60.00?
Changing the strap is a simple operation that requires a spring bar tool. Position the watch on a soft surface, insert the spring bar tool into the small space between the spring bar and the case from both sides, gently removing the pins. Insert the new strap by aligning the holes with the pins, pushing until you hear the locking click. Verify that the strap is secure before wearing the watch. If you prefer, you can entrust the operation to a watchmaker.
Is a generic aftermarket strap compatible with the Seamaster Diver 300M 2562.60.00?
Yes, but pay attention to the lug width. Any strap with a 20mm lug width is compatible from a mechanical standpoint. However, we recommend straps of superior quality—such as those made from alligator, calf, or technical rubber—because the Seamaster deserves a finish that respects its luxury positioning. Common canvas or synthetic leather straps will create aesthetic discord with the stainless steel case and chronometer movement.
How long does a leather strap last on a diving watch like the Seamaster Diver 300M?
The lifespan of a leather strap depends on use and maintenance. If worn daily, a high-quality alligator strap lasts 5-7 years before showing significant signs of wear. Frequent exposure to water, chlorine, and UV rays accelerates aging. We recommend quickly drying the strap after water contact and applying a leather conditioner every 3-4 months. For intensive underwater use, a technical rubber strap is a more durable choice.
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

