Omega
Seamaster Diver 300M 212.30.41.20.04.001 (aka: 21230412004001)— lug 20mm
Omega Seamaster Diver 300M 212.30.41.20.04.001 (aka: 21230412004001): 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Omega 212.30.41.20.04.001 (aka: 21230412004001)The essential strap measurement.
Browse 20mm straps →212.30.41.20.04.001 (aka: 21230412004001)
Omega caliber 2500 Hours, Minutes, Seconds | Date | Co-Axial Escapement, Chronometer
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Seamaster Diver 300M
FAQ
What is the lug width of the Omega Seamaster Diver 300M 212.30.41.20.04.001?
The lug width is 20mm. This is the standard distance between the pins that connect the strap to the case. Measure perpendicularly with a digital caliper to verify the compatibility of a replacement strap.
Which strap is best suited for the Omega Seamaster Diver 300M?
It depends on the use: alligator (dark havana or blue-black) is ideal for formal elegance; vegetable-tanned calf offers versatility and noble aging; shell cordovan guarantees structural rigidity and magnificent patina; FKM rubber is the pragmatic choice for intensive and aquatic use.
How do I change the strap on my Seamaster Diver 300M?
You will use a spring bar tool (a tool with two flat ends): insert one end into the slot under the lug, push downward to compress the internal spring, and pull the pin out. Repeat on the other side. Always verify that the width of the new strap is 20mm before installation.
Can I use an aftermarket strap with my Omega Seamaster Diver 300M?
Yes, as long as the lug width is exactly 20mm. Milano Straps artisanal straps are specifically designed to accommodate this measurement and are 100% compatible with your model.
How long does a leather strap last on a sports watch like the Seamaster Diver?
A quality leather strap, if subjected to ordinary use (without prolonged contact with salt water), lasts between 3 and 5 years. <a href="https://milanostraps.it/pages/termine-glossario/concia-vegetale">Vegetable tanning</a> and <a href="https://milanostraps.it/pages/termine-glossario/shell-cordovan">shell cordovan</a> age by developing patina, visually extending the aesthetic life of the strap itself.
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 →By appointment only · Milan
The atelier's website: casatimilano.com