Omega · Seamaster Planet Ocean
Strap for Seamaster Planet Ocean 600M Co-Axial 45.5 Chronograph Titanium / Liquidmetal / Bracelet
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Recommended spring bar
Straps for the Seamaster Planet Ocean 232.90.46.51.03.001 (aka: 23290465103001)
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 232.90.46.51.03.001 (aka: 23290465103001), seen from the bench
Frequently asked questions
What is the correct lug width for the Seamaster Planet Ocean 232.90.46.51.03.001?
The <a href="/pages/termine-glossario/misura-ansa">lug width</a> of the Seamaster Planet Ocean 232.90.46.51.03.001 is 22mm. This width is the international standard for oversized cases larger than 42mm in diameter. Always verify the <a href="/pages/termine-glossario/misura-ansa">lug width</a> before purchasing an aftermarket strap, as even a 1mm difference will compromise installation and the overall aesthetics of the watch.
Which strap material is best suited for the Titanium Seamaster Planet Ocean?
Alligator is the most sophisticated choice for titanium: the contrast between the cold grey metal and the natural grain of the leather creates a fascinating aesthetic dichotomy. Alternatively, vegetable-tanned calf offers a natural patina that evolves over time, while rubber or NATO straps guarantee maximum sportiness and operational durability.
How do you correctly measure the lug width of a watch?
The <a href="/pages/termine-glossario/misura-ansa">lug width</a> is determined by measuring the distance in millimeters between the two lateral contact points where the strap connects to the case. Use a digital caliper or a millimeter ruler, positioning it perpendicular to the lugs. For the 232.90.46.51.03.001, this measurement must be exactly 22mm.
Can I use an aftermarket strap on this Omega Seamaster?
Yes, provided the <a href="/pages/termine-glossario/misura-ansa">lug width</a> is exactly 22mm and the strap is constructed with premium materials (vegetable-tanned leather, <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> or <a href="/pages/termine-glossario/alligatore">alligator</a>). A bespoke strap also allows you to customize the length, color and stitching thread according to your individual wrist, ensuring superior comfort and aesthetics compared to standard straps.
What is the average lifespan of a leather strap on a diving watch?
A quality leather strap, with <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a>, typically lasts 3-5 years under normal use conditions and proper drying after each water contact. Diving watches such as the Seamaster Planet Ocean 232.90.46.51.03.001 require greater attention to moisture: after immersions or intense water sessions, the strap must be completely dried to prevent bacterial rot and premature fiber degradation. Casati Milano guarantees 18 months on bespoke straps, regardless of usage.
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