Omega · Seamaster Planet Ocean
Strap for Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Black / Bracelet / Korps Commandotroepen
Takes 20 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 232.30.42.21.01.007 (aka: 23230422101007)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€149
Red Alligator Strap Water Resistant€195
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Military Alligator Green Strap€138
Hammered Calfskin Strap Light Blue€98
The Seamaster Planet Ocean 232.30.42.21.01.007 (aka: 23230422101007), seen from the bench
Frequently asked questions
What is the lug width of the Omega Seamaster Planet Ocean 232.30.42.21.01.007?
The lug width of this model is exactly 20mm. This dimension is specific to the 42mm Seamaster Planet Ocean and is the result of Omega's proportional calculation to ensure perfect balance between the steel case mass and the flexibility of the strap. Always verify by measuring the distance between the case attachment pins before ordering an aftermarket strap.
What is the best strap for the Seamaster Planet Ocean 232.30.42.21.01.007?
The choice depends on your intended use. For an elegant application, we recommend a dark brown or black alligator strap that creates contrast with the blue ceramic bezel. If you prefer to maintain the sporty character, an FKM rubber strap or high-density fabric NATO strap preserves the model's underwater identity. A vegetable-tanned calf leather represents the ideal compromise between aesthetic versatility and durability.
How do I change the strap on my Omega Seamaster Planet Ocean?
Strap replacement requires a specific tool to extract the pins (spring bar tool). Position the watch on a stable surface, locate the elastic rings inside the lugs, and gently compress the pin ends to release the old strap. Insert the new strap by aligning the pins with the lug holes, exerting slight pressure until you feel the locking click. If you are unsure, a strap change service at a professional watchmaker ensures maximum precision.
Which aftermarket strap is compatible with reference 232.30.42.21.01.007?
All straps with 20mm lug width are compatible with your Seamaster Planet Ocean. You can choose from several types: alligator, calf, shell cordovan, rubber, NATO, canvas. Online you will find a selection of 20mm straps ready for shipment, customizable in length, color, and buckle type, including options with steel or titanium deployante.
How long does a leather strap last on the Seamaster Planet Ocean?
The lifespan of a leather strap depends on the intensity of use and the material chosen. A quality alligator or shell cordovan, with periodic maintenance (dusting and conditioning with specific products), can last 4-5 years even with daily use. A vegetable-tanned calf leather, which develops natural patina, can last 3-4 years before showing visible signs of wear. FKM rubber straps have a longer lifespan (6-8 years) but still require regular cleaning to preserve aesthetic appearance.
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

