Omega
Seamaster Diver 300M 210.30.42.20.10.001— lug 20mm
Omega Seamaster Diver 300M 210.30.42.20.10.001: 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 210.30.42.20.10.001The essential strap measurement.
Browse 20mm straps →210.30.42.20.10.001
Omega caliber 8800 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial Escapement
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 210.30.42.20.10.001?
The lug width of this model is 20mm. This measurement should be verified using a digital caliper positioned between the inner lugs of the case, and is essential for ordering a compatible strap.
Which strap is best suited for the Seamaster Diver 300M 210.30.42.20.10.001?
For elegant daily wear: wide grain alligator in navy blue or grey. For water durability: vulcanized rubber or NATO. For natural ageing: vegetable-tanned calf in brown or black. The choice depends on primary use and personal aesthetic preference.
How do you change the strap on the 210.30.42.20.10.001?
This model features an integrated deployant clasp on the case. You must unlock the deployant mechanism (usually via a side button), remove the original strap, insert the new strap with a straight end terminal compatible with the deployant, and close it until the safety click.
Can I fit an aftermarket compatible strap on this Seamaster Diver?
Yes, provided the strap is certified 20mm and equipped with a straight end terminal compatible with the original case deployant. Milanostraps offers handcrafted 20mm leather straps customizable in leather, sizes and stitching, guaranteed for 18 months.
How long does a leather strap last on a diving watch like the 210.30.42.20.10.001?
A quality leather strap (alligator or vegetable-tanned calf) lasts 3-5 years under moderate use conditions. On a 300M diver frequently exposed to salt water, the lifespan reduces to 2-3 years. Vulcanized rubber is more resistant to moisture and offers a lifespan of 5-7 years.
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