Omega · Seamaster Planet Ocean
Strap for Seamaster Planet Ocean 600M Co-Axial 45.5 Chronograph Stainless Steel / Black / Bracelet
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 2210.50.00 (aka: 22105000)
Selected for the 20 mm lug width · workshop selection
Military Red Alligator Strap with Blue Stitching€183
Black and Red NATO Strap — Military Heritage€183
Black Crocodile Military Strap with Blue Stitching€183
Black Calfskin NATO Strap 20mm€80
Dark Brown Calfskin Military Strap€80
The Seamaster Planet Ocean 2210.50.00 (aka: 22105000), seen from the bench
Frequently asked questions
What is the lug width of the Omega Seamaster Planet Ocean 2210.50.00?
The Omega Seamaster Planet Ocean 2210.50.00 has a lug width of 20mm. This width is the distance between the case lugs where the strap attaches. It is important to measure correctly to ensure compatibility and a secure fit without lateral play.
Which strap is best suited for the Seamaster Planet Ocean 2210.50.00?
For this model, vegetable-tanned alligator represents the noblest choice: the fine texture and natural patina pair perfectly with the brushed steel case. Shell cordovan offers a sporty alternative, while dark brown calf leather creates chromatic harmony with the orange bezel of the dial.
How do I change the strap on the Omega Seamaster Planet Ocean 2210.50.00?
The strap is changed by removing the spring bars that connect the strap to the case. Use a spring bar tool to gently push the small elastic pin and extract the old strap. Insert the new strap by aligning the holes with the pins, then push until fully secured. Ensure the new strap is exactly 20mm wide for safety.
Can I use an aftermarket strap compatible with my Omega 2210.50.00?
Yes, you can use quality aftermarket straps provided they strictly comply with the 20mm lug width specification. Straps in alligator, shell cordovan, calf, and technical materials such as NATO are widely available. The important thing is to choose reliable brands that guarantee compatibility and durability over time.
How long does a leather strap last on the Seamaster Planet Ocean 2210.50.00?
Durability depends on the material and usage. Vegetable-tanned alligator or shell cordovan typically lasts 3-5 years under normal conditions, developing a characteristic patina. Calf leather has similar longevity, while technical materials like NATO can last over 10 years. Frequent exposure to salt water shortens the life of a natural leather strap; in such cases, prefer elastomeric solutions like rubber.
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

