Omega · Seamaster Planet Ocean
Strap for Seamaster Planet Ocean Ultra Deep O-Megasteel / White / Rubber
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Seamaster Planet Ocean 215.32.46.21.04.001
Selected for the 22 mm lug width · workshop selection
Matte Blue Alligator Strap€195
Matte Dark Brown Alligator Strap€195
Matte Grey Alligator Strap€195
Hammered Calfskin Strap Light Blue€98
Hammered Yellow Strap with Ecru Stitching€98
The Seamaster Planet Ocean 215.32.46.21.04.001, seen from the bench
Frequently asked questions
What is the lug width of the Seamaster Planet Ocean 215.32.46.21.04.001?
The standard lug width for reference 215.32.46.21.04.001 is 22mm. This dimension is measured between the two internal spring bar attachments on the case and is a critical parameter for selecting a compatible strap. You can verify it by consulting Omega documentation or by directly measuring the lug width of the original strap.
Which strap material pairs best with the Seamaster Planet Ocean 45.5mm?
Tuscan vegetable tanning leather offers authentic structure and characteristic aging, perfect for emphasizing the diver vocation. Crocodile alligator guarantees regular texture and formal versatility, ideal for those who alternate diving and semi-professional occasions. Shell cordovan offers compactness and salt water resistance, for dedicated technical preparations.
How do you change the strap on this watch?
The Seamaster Planet Ocean uses standard spring bar attachments. Position the watch on a soft support with the dial facing down, locate the lug access hole with a thin screwdriver tool, gently push the spring bar attachment inward to release the old strap, remove the strap. Insert the new strap (ensuring the lug width is exactly 22mm) and push the spring bar attachment until the securing click is heard.
Can I use an aftermarket strap compatible with the 215.32.46.21.04.001?
Yes, provided the lug width is exactly 22mm and the strap is constructed to quality standards suitable for a technical dive watch. Artisanal straps in vegetable tanning or alligator offer guaranteed compatibility and superior durability compared to generic straps, as they comply with the rigidity and finishing specifications of the titanium-ceramic case.
How long does a natural leather strap last on a dive watch?
A well-maintained vegetable-tanned strap lasts 3-5 years of intensive use, with aging that adds aesthetic character. After diving, air-dry the strap for 24 hours, avoiding direct exposure to heat sources. The artisanal warranty covers manufacturing defects for 18 months. Factors such as frequency of use, salt water exposure, and regular maintenance determine actual 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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

