Omega · Seamaster Diver 300M

Strap for Seamaster Diver 300M Automatic 36.25 Stainless Steel / Electric Blue / Bracelet

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter36 mm
Reference2554.80.00 (aka: Mayol)
FamilySeamaster Diver 300M
MovementOmega caliber 1120 Hours, Minutes, Seconds | Date | Chronometer
CaseStainless Steel

Recommended spring bar

Spring bars Omega 22mm — 1.8mm diameter

Technical match for lug width and diameter · lug 22 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Seamaster Diver 300M 2554.80.00 (aka: Mayol)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Seamaster Diver 300M 2554.80.00 (aka: Mayol), seen from the bench

The Seamaster Diver 300M ref. 2554.80.00, known as "Mayol" after French freediver Jacques Mayol, is a miniaturized diving watch from the 1990s featuring a 36.25mm stainless steel case with unidirectional bezel. Powered by the Omega calibre 1120 manual-wind movement certified COSC, it offers hours, minutes, seconds, date at 3 o'clock, and approximately 48 hours power reserve. The 22mm lug width accommodates the original bracelet, while water resistance reaches 300 metres.

Frequently asked questions

What is the exact lug width of the Omega Seamaster Diver 300M 2554.80.00?

The lug width of the 2554.80.00 is precisely 22mm. This measurement represents the distance between the two lateral lugs of the case and determines strap compatibility. It should be measured using a digital calliper positioned between the inner lugs or a precision ruler graduated to the tenth of a millimetre to ensure absolute accuracy.

Which strap material is most suitable for the Seamaster Diver 300M Mayol?

Genuine alligator represents the most appropriate choice for the vintage character of the Mayol, offering fine-grained texture and patina that improves over time. Alternatively, shell cordovan provides superior moisture resistance for regular marine use, whilst vegetable-tanned calf offers visible patina development and breathability. For intensive aquatic activities, black rubber straps remain the most practical and durable solution.

How do I change the strap on an Omega Seamaster Diver 300M 2554.80.00?

To change the strap on the 2554.80.00, remove the spring bars connecting the strap to the lugs using a dedicated tool or fine non-abrasive point. Position the watch on a soft cloth, gently push the spring bar inward and slide the strap out of the lug. To install the new 22mm strap, align the spring bars with the designated seats and insert the strap, ensuring the bar clicks fully into position.

Can I use an aftermarket 22mm strap on this watch?

Yes, the 2554.80.00 is compatible with any quality strap manufactured to 22mm specification, provided it features adequate thickness (typically 3.5-4mm) and has no tolerance defects. Artisanal milanostraps.it straps offer complete customisation in leather, rubber and heterogeneous materials, guaranteeing perfect fit to the inner lugs of the Omega case.

What is the average lifespan of a leather strap on a Seamaster Diver 300M?

A high-quality leather strap (alligator, shell cordovan, vegetable-tanned calf) on a moderately worn Seamaster typically lasts 18-24 months before requiring replacement. Frequent exposure to moisture, pool chlorine and perspiration can reduce lifespan to 12-15 months. Periodic maintenance with gentle cleaners and thorough drying, as well as alternating with rubber straps during summer months, significantly extends leather longevity.

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