Omega · Seamaster Diver 300M
Strap for Omega Seamaster Diver 300M 210.62.44.20.01.001
The Seamaster Diver 300M Master Co-Axial 43.5 Sedna Black takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Recommended spring bar
Straps for the Seamaster Diver 300M 210.62.44.20.01.001
Selected for the 20 mm lug width · workshop selection
Blue Alligator and Rubber Hybrid Strap · rubber, for the water€138
Green Rubberized Alligator Strap with Ecru Tribal Stitching · rubber, for the water€149
Black Alligator Strap with Light Blue Edges€149
Red Alligator Strap Water Resistant€195
Military Alligator Green Strap★ 5 · 1€138
Hammered Calfskin Strap Light Blue€98
What I'm asked about the Omega Seamaster Diver 300M 210.62.44.20.01.001
What strap size does the Omega Seamaster Diver 300M 210.62.44.20.01.001 take?
The Omega Seamaster Diver 300M 210.62.44.20.01.001 needs 20 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 Diver 300M 210.62.44.20.01.001 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 Diver 300M 210.62.44.20.01.001?
Yes, in 20 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 44 mm diver I go for a full-thickness strap, not a thin one.
Which strap do you recommend for the Omega Seamaster Diver 300M 210.62.44.20.01.001?
Rubber if you wear it in the water; otherwise a 20 mm calf strap, full thickness. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
The Seamaster Diver 300M 210.62.44.20.01.001, seen from the bench
Frequently asked questions
What is the best strap material for the Seamaster Diver 300M 210.62.44.20.01.001?
The choice depends on the use. For formal elegance, alligator is the top choice: its natural texture enhances the ceramic case. For daily versatility, vegetable-tanned calf offers authentic patina over time. For intense sports use, ballistic nylon NATO guarantees water resistance. For diving, FKM rubber is the most recommended technical solution.
Which aftermarket straps are compatible with the 210.62.44.20.01.001?
All straps with 20mm lug width are compatible. Milano Straps offers a selection of artisanal straps in various materials (alligator, calf, shell cordovan, NATO, rubber) with 20mm lug width . Verify that the strap is specifically made for this lug width.
How long does a leather strap last on an Omega Seamaster?
Durability depends on the material and use. A vegetable-tanned calf with artisanal tanning, worn regularly, can last 2-4 years before needing replacement. Shell cordovan, being denser, can last 5-7 years. Alligator, given its fineness, has a lifespan similar to calf (2-3 years). Prolonged exposure to humidity and chlorine (frequent in diving) reduces longevity. The warranty on Casati Milano straps covers 18 months of standard use.
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