Omega · Seamaster Planet Ocean

Strap for Seamaster Planet Ocean Ultra Deep O-Megasteel / Summer 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 diameter46 mm
Reference215.30.46.21.03.002 (aka: 21530462103002)
FamilySeamaster Planet Ocean
MovementOmega caliber 8912 Hours, Minutes, Seconds | Chronometer, Co-Axial Escapement
CaseTitanium, Ceramic, Stainless 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 Planet Ocean 215.30.46.21.03.002 (aka: 21530462103002)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Seamaster Planet Ocean 215.30.46.21.03.002 (aka: 21530462103002), seen from the bench

The Seamaster Planet Ocean features the Omega 8912 caliber with a co-axial escapement and chronometer certification. The case has 22mm lugs and uses an automatic movement with hour, minute and second indication. The model belongs to the brand's dive watch collection.

Frequently asked questions

What is the exact lug width of the Omega Seamaster Planet Ocean 215.30.46.21.03.002?

The lug width is 22mm. This dimension is compatible with the extensive collection of <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-22mm">22mm watch straps</a> available on Milano Straps, from leather straps to sporty rubber models.

Which strap is recommended for the Omega Seamaster Planet Ocean 215.30.46.21.03.002?

To enhance the sporty character and diving vocation, we recommend <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a> in dark tones (brown, burnt cognac) or <a href="/pages/termine-glossario/alligatore">alligator</a> with vertical grain. For frequent water use, vulcanized rubber straps guarantee maximum resistance to moisture and chlorine.

How do you change the strap on the Omega Seamaster Planet Ocean 215.30.46.21.03.002?

The straight 22mm lugs are removed using a springbar tool, a fork-shaped instrument that compresses the internal spring. Position the tool from the inside of the lug, press gently toward the center of the case and slide off the old strap. Proceed with the same operation on the opposite side. Inserting the new strap is performed in reverse order, ensuring that the springbar is correctly positioned.

Which aftermarket straps are compatible with this Omega model?

All <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-22mm">straps with 22mm lug width</a> are compatible. Milano Straps offers artisanal Italian leathers: Tuscan leather in vegetable tanning, smooth calf, ostrich leather and structured alligator. It is possible to customize thickness, length, thread color and add embroidered initials.

How long does a leather strap last on a watch like the Omega Seamaster Planet Ocean?

An artisanal <a href="/pages/termine-glossario/concia-vegetale">vegetable-tanned leather</a> strap, if subjected to moderate use, has an average lifespan of 3-5 years. With frequent use in humid environments (swimming pool, sea), the useful life is reduced to 18-24 months. Casati Milano guarantees 18 months on every customized strap. The natural patina that develops is appreciated by collectors as an indicator of authentic wear and the object's history.

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