Omega · Seamaster Planet Ocean
Strap for Seamaster Planet Ocean 600M Co-Axial 42 Mécanique 20 Sapphires / Short Strap
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 2913.50.48 (aka: 29135048)
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 2913.50.48 (aka: 29135048), seen from the bench
Frequently asked questions
What is the lug width of the Omega Seamaster Planet Ocean 2913.50.48?
The lug width of the 2913.50.48 model is 20mm. This width is specific to the 42mm case diameter and is compatible with all standard 20mm straps. To verify the correct measurement, measure the space between the two lugs on the case using a ruler: the 20mm refers to the metal bar, not the visible space on the side.
Which strap do you recommend for the bicolor Seamaster Planet Ocean?
For the 2913.50.48 in stainless steel and white gold, we recommend a toasted or cognac alligator: the natural grain enhances the bicolor design without competing. Alligator develops a rich patina over time, ideal for an instrument of this caliber. An elegant alternative is vegetable-tanned calf leather in sand color. Avoid entirely dark straps: this model requires lighter tones than the case to enhance the white gold.
How to change the strap on the Seamaster Planet Ocean without damaging the case?
Remove the spring bar using a specific dual-ended tool: insert it into the small space between the lug and the strap, near the spring, and push outward gently. The spring will compress and the bar can be extracted. Repeat on the opposite lug. Avoid forcing with screwdrivers or improvised tools to prevent scratching the case or deforming the spring. After removal, clean any sediment under the lugs with a dry cloth.
Is the strap compatible with the 2913.50.48 an aftermarket or genuine Omega original?
All standard 20mm straps are mechanically compatible with the 2913.50.48, whether aftermarket or genuine Omega. Artisanal alligator or calf leather straps from milanostraps.it are compatible and offer superior construction quality compared to Omega rubber straps. The choice depends on context and personal taste: genuine Omega straps guarantee brand certainty, bespoke straps offer customization, natural leather, and lasting value.
How long does a leather strap last on the Seamaster Planet Ocean?
A high-quality alligator or vegetable-tanned calf leather strap lasts an average of 5-7 years if subjected to daily wear on a 42mm sports watch. Durability depends on climate, perspiration, frequency of replacement, and maintenance. Alligator, being denser, resists better than calf. Signs of wear (edge flexing, possible minor scuffing) do not compromise functionality. Casati Milano offers regeneration services and spring bar replacement after 4 years of use, extending the life of the strap.
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

