Omega · Seamaster Planet Ocean
Strap for Omega Seamaster Planet Ocean 232.18.38.20.01.001
The Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Diamond / Black / Alligator takes 18 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 232.18.38.20.01.001
Selected for the 18 mm lug width
Black Calfskin Rally Watch Strap – Handmade in Milan★ 5 · 2€110
Black Saffiano Strap Ecru Stitching★ 5 · 5€90
Vintage Brown Calfskin Strap — Natural Patina★ 4.9 · 11€98
Hammered Pink Strap with Ecru Stitching★ 5 · 1€98
Swift Topo Leather Strap€120
Hammered Yellow Strap with Ecru Stitching€98
What I'm asked about the Omega Seamaster Planet Ocean 232.18.38.20.01.001
What strap size does the Omega Seamaster Planet Ocean 232.18.38.20.01.001 take?
The Omega Seamaster Planet Ocean 232.18.38.20.01.001 needs 18 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.
Can the strap on the Omega Seamaster Planet Ocean 232.18.38.20.01.001 be changed?
Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.
Can I put a leather strap on the Omega Seamaster Planet Ocean 232.18.38.20.01.001?
Yes, in 18 mm leather, as long as you don't wear it in the water: leather doesn't like the sea or the pool. For days in the water, rubber. On a 38 mm diver I go for a full-thickness strap, not a thin one. I don't keep rubber ready in 18 mm: write to me and I'll make it.
Which strap do you recommend for the Omega Seamaster Planet Ocean 232.18.38.20.01.001?
Rubber if you wear it in the water; otherwise a 18 mm calf strap, full thickness. You'll find it ready in the 18 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
The Seamaster Planet Ocean 232.18.38.20.01.001, seen from the bench
Frequently asked questions
Which strap material pairs best with the Seamaster Planet Ocean 37.5mm?
The Seamaster Planet Ocean 232.18.38.20.01.001 represents a hybrid between formality and function, so the choice depends on your intended use. High-quality alligator enhances the formal appearance and ages beautifully. For everyday wear and moisture resistance, vegetable-tanned calf is superior. A fabric NATO restores the diving heritage. Shell cordovan represents an aesthetic and tactile compromise between the two extremes. All these materials, in 18mm size, are available online at milanostraps.it.
Is the strap I purchase on milanostraps.it 100% compatible with my 232.18.38.20.01.001?
Yes, provided you order a strap in 18mm size. The straps in the 18mm collection on milanostraps.it comply with the specific construction tolerances of the Seamaster Planet Ocean 232.18.38.20.01.001. When ordering online, you can personalise initials, leather choice, and stitching colour. For a complete personalised experience, Casati Milano creates bespoke straps with WhatsApp updates and an 18-month warranty.
How long does a leather strap last on the Seamaster Planet Ocean?
The lifespan of a leather strap depends on the material and usage. High-quality alligator, worn daily, lasts 4 to 7 years before replacement is needed. Vegetable-tanned calf, being more resistant to moisture, can last 5-8 years. Shell cordovan can reach up to 10 years. Maintenance extends the life: remove the strap periodically for drying, avoid prolonged moisture, and occasionally apply specific leather creams. On milanostraps.it, each strap includes care instructions.
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
The atelier's website: casatimilano.com

