Omega · Seamaster Diver 300M

Strap for Seamaster Diver 300M Quartz 41 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 width20 mm
Case diameter41 mm
Reference2342.20.00 (aka: 23422000)
FamilySeamaster Diver 300M
MovementOmega caliber 1538 hours, minutes, seconds | date | chronometer
CaseYellow Gold, Stainless 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 2342.20.00 (aka: 23422000)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Seamaster Diver 300M 2342.20.00 (aka: 23422000), seen from the bench

The Omega Seamaster Diver 300M Quartz ref. 2342.20.00 combines stainless steel and 18k yellow gold in a 41 mm case with black ceramic bezel and blue wave dial. Water-resistant to 300 meters, it features the Omega 1538 quartz movement with date function and Co-Axial technology. The 20 mm lug width accommodates aftermarket straps while maintaining the balanced aesthetics of this two-tone sports watch.

Frequently asked questions

What is the lug width of the Omega Seamaster Diver 300M 2342.20.00?

The lug width of this reference is exactly 20 mm. This is the distance between the two spring bars that attach the strap to the case. It is essential to measure it precisely with a caliper before ordering a new aftermarket strap.

What is the best strap for the Seamaster Diver 300M 2342.20.00?

It depends on usage and personal preferences. Dark brown alligator enhances the elegance of the steel-and-gold two-tone; shell cordovan ages magnificently, developing patina; black rubber maintains the diving vocation; vegetable-tanned leather offers everyday versatility. We recommend choosing based on your primary wearing occasion.

How do you change the strap on the Omega Seamaster Diver 300M?

Using a dedicated spring bar tool, remove the pins from the case without forcing. Next, insert the new strap by aligning the openings with the two lugs, then reinsert the pins. Caution is required to avoid damaging the case. If in doubt, it is advisable to contact an Omega service centre or an experienced watchmaker.

Are 20 mm aftermarket straps compatible with reference 2342.20.00?

Yes, any strap with a 20 mm lug width is compatible, provided the width is verified with precision. Caution: there are variants of 19 mm or 21 mm that may not fit perfectly. We recommend checking the technical specifications of the strap before purchase.

How long does a leather strap last on the Omega Seamaster?

A quality leather strap (alligator, shell cordovan or vegetable-tanned leather) typically lasts 2-4 years in daily use, depending on exposure to moisture, sweat and sunlight. Vegetable-tanned leather develops patina and can last longer; alligator maintains its appearance longer if protected from rain. Regular maintenance (gentle cleaning and treatment with natural waxes) significantly extends durability.

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