Omega · Seamaster Planet Ocean

Strap for Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Black / Alligator

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter38 mm
Reference232.33.38.20.01.001 (aka: 23233382001001)
FamilySeamaster Planet Ocean
MovementOmega caliber 8520 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial Escapement
CaseStainless Steel

Recommended spring bar

Spring bars Omega 18mm — single diameter

Technical match for lug width and diameter · lug 18 mm · Ø 1.8 mm

All Omega spring barsOpen →

The Seamaster Planet Ocean 232.33.38.20.01.001 (aka: 23233382001001), seen from the bench

The Omega Seamaster Planet Ocean features the automatic caliber 8520 with co-axial escapement and chronometer certification. The movement displays hours, minutes, seconds, and date. 18mm lugs for the strap.

Frequently asked questions

What is the exact lug width of the Omega Seamaster Planet Ocean 232.33.38.20.01.001?

The lug width is 18 mm. This width is compatible exclusively with straps designed for this dimension and represents the width of the lug terminal itself, measured between the two contact points on the strap.

What is the best material for a strap on the Seamaster Planet Ocean 232.33.38.20.01.001?

It depends on the intended use. For pure elegance: black alligator or shell cordovan. For durability and natural patina: vegetable-tanned calf leather. For frequent diving: rubber or NATO strap. The choice should balance the aesthetic of the blue case with salt-water resistance.

How do you change the strap on the Omega 232.33.38.20.01.001 safely?

Use a spring bar remover or a specific tool to extract the pins present on the lugs. Position the watch on a soft cloth to prevent scratches. Push the pin gently inward to remove it, then remove the old strap. Insert the new one by aligning the holes and reinsert the pin until you feel a perceptible click.

Are there aftermarket straps compatible with the 18mm lug width of this model?

Yes, all straps in 18 mm lug width are compatible. Ensure that the strap is specifically designed for 18 mm and that the inner keeper does not have unusual thicknesses that could prevent proper seating on the Omega case.

How long does a leather strap typically last on an Omega Seamaster subjected to regular use?

A quality leather strap, with vegetable tanning, maintains structural integrity for 2-4 years with moderate daily use. Constant exposure to moisture and chlorine accelerates aging. Casati Milano provides an 18-month warranty and consultation on maintenance and leather rotation.

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