Omega · Seamaster Planet Ocean

Strap for Seamaster Planet Ocean Ultra Deep O-Megasteel / Grey / 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
Reference215.30.46.21.06.001
FamilySeamaster Planet Ocean
MovementOmega caliber 8912 hours, minutes, seconds | chronometer, co-Axial escapement
Year2022
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 215.30.46.21.06.001

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Seamaster Planet Ocean 215.30.46.21.06.001, seen from the bench

The Seamaster Planet Ocean 215.30.46.21.06.001 is an Omega deep-diving instrument rated for 600 metres, featuring a 45.50mm case diameter with 22mm lug width. It combines grade 5 titanium, ceramic, and stainless steel construction, powered by the Coaxial Calibre 8912 chronometer movement. The dark grey ceramic bezel and black dial with applied indices define a functional tool designed for extreme oceanic exploration.

Frequently asked questions

What is the exact lug width of the Omega Seamaster Planet Ocean 215.30.46.21.06.001?

The lug width of the Omega Seamaster Planet Ocean 215.30.46.21.06.001 is 22 millimeters. This measurement is standard for the model and is compatible exclusively with straps designed for this dimension. Always verify the measurement with a millimeter ruler before ordering an aftermarket strap, measuring from the base of the spring bar to the opposite inner edge.

What strap is recommended for the Seamaster Planet Ocean 215.30.46.21.06.001?

For the Seamaster Planet Ocean 215.30.46.21.06.001, we recommend three categories: vegetable-tanned Tuscan leather (honey or tobacco coloring) for elegant daily wear, French quality alligator for formal occasions, and NATO strap in technical nylon or marine-grade rubber for frequent diving. The choice depends on predominant use: vegetable-tanned calf develops patina and chromatic evolution over time, alligator maintains a fine grain and permanent suppleness, rubber guarantees absolute resistance to saltwater.

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

Changing the strap on a Seamaster Planet Ocean 215.30.46.21.06.001 requires the use of a dedicated spring bar tool. Position the watch with the case facing upward, locate the 22mm spring bars (lug bars), gently push inward with the tool to release the internal spring, and slide out the worn strap. Insert the new 22mm strap ensuring that the spring bar clicks correctly into both lug holes. This operation is recommended to be performed on a soft surface to avoid scratches on the titanium case.

Is an aftermarket strap compatible with the Seamaster Planet Ocean 215.30.46.21.06.001?

An aftermarket strap is compatible with the 215.30.46.21.06.001 if constructed for the 22mm lug width. Not all 22mm straps are equal: it is necessary to verify that the manufacturing tolerance falls within ±0.5mm of Omega specifications. Custom straps made by specialized artisans guarantee superior manufacturing precision compared to generic straps, ensuring a secure fit without play and long-lasting durability.

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

A vegetable-tanned Tuscan leather strap has an average lifespan of 4–6 years with regular use (worn 4–5 days per week), with possible extensions up to 8 years if protected from constant humidity. Vegetable-tanned material develops a natural patina that enhances aesthetics over time, but the organic fiber gradually degrades when frequently exposed to immersions or saltwater humidity. For frequent diving use, we recommend alternating with technical rubber or NATO straps, preserving the calf leather for land-based occasions. Store the leather strap in dry, ventilated environments when not in use.

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