Omega · Seamaster Diver 300M

Strap for Seamaster Diver 300M Co-Axial 36.25 Stainless Steel / Blue / Rubber

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter36 mm
Reference2922.80.91
FamilySeamaster Diver 300M
MovementOmega caliber 2500 hours, minutes, seconds | date | co-Axial escapement, chronometer
CaseStainless Steel

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Seamaster Diver 300M 2922.80.91

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Seamaster Diver 300M 2922.80.91, seen from the bench

The Omega Seamaster Diver 300M 2922.80.91 features a 36.25mm stainless steel case with an iconic electric blue wave dial and unidirectional bezel with Luminova markers. Equipped with the Omega Caliber 2500 Co-Axial Chronometer movement, it delivers 28,800 vibrations per hour and over 40 hours of power reserve. Water-resistant to 300 meters, this classic diver combines precision engineering with reliable deep-water performance; the 20mm lug width accommodates compatible aftermarket straps.

Frequently asked questions

What is the lug width of the Omega Seamaster Diver 300M 2922.80.91?

The lug width of the 2922.80.91 is 20mm, which is the distance between the two pins that connect the strap to the case. This specification is essential for selecting compatible aftermarket straps. You can verify it by measuring the distance between the attachments on your case or by consulting official Omega documentation.

What is the best strap for the Omega Seamaster Diver 300M 2922.80.91?

The choice depends on intended use and aesthetic preferences. For formal elegance, we recommend dark blue or black alligator. For daily versatility, vegetable-tanned calf leather that develops patina over time. For diving activities, high-density rubber in black or navy blue. All three materials are perfectly compatible with the 20mm lug width.

How to change the strap on the Omega Seamaster Diver 300M 2922.80.91?

To change the strap, remove the original bracelet by extracting the lateral pins using a spring bar tool. Once the old strap is removed, insert the new one by aligning the lugs with the case pins and push until the locking click. If you prefer greater precision, entrust the task to a professional watchmaker or consult an expert at Milano Straps.

Are there aftermarket straps compatible with the 2922.80.91?

Yes, numerous quality aftermarket straps are compatible with the 20mm lug width. Milano Straps offers a curated collection of customizable leather straps (alligator, calf, shell cordovan) and rubber, all available for immediate shipment or custom-made at the Casati Milano atelier.

How long does a leather strap last on the 2922.80.91?

The lifespan of a leather strap varies depending on the material and wear. Alligator and shell cordovan typically resist for 3-5 years with regular use, while vegetable-tanned calf can last 2-4 years before requiring replacement. Exposure to water and humidity (typical of a diving watch) accelerates leather aging, making it advisable to have multiple straps in rotation.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only