Omega · Seamaster Diver 300M
Strap for Seamaster Diver 300M Automatic 41 Titanium / Grey / Bracelet / 150th Anniversary
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 Diver 300M 2232.30.00 (aka: 22323000)
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 Diver 300M 2232.30.00 (aka: 22323000), seen from the bench
Frequently asked questions
What is the lug width of the Seamaster Diver 300M 2232.30.00?
The Seamaster Diver 300M 2232.30.00 has a lug width of 20 millimetres. This dimension is standard for this specific reference and represents the width between the inner walls of the spring bar holes. Any aftermarket strap must be crafted to exactly this measurement to ensure perfect fit without visible gaps.
Which strap material pairs best with the 2232.30.00 in titanium and white gold?
Dark-toned alligator (black, graphite blue) enhances the white gold while maintaining balance. For daily wear, vegetable-tanned calf in warm brown tones dialogues with the patina of titanium. For actual diving, NATO in technical polyamide or FKM rubber ensures aquatic performance without aesthetic compromise.
How do you change the strap on an Omega Seamaster 2232.30.00?
Position the watch with the lug facing upward. Locate the spring bars at the extremities of the lug. Using a dedicated tool (spring bar tool), apply gentle pressure inward on the spring bar to unlock the spring while simultaneously extracting the strap. To install the new one, align the lug holes with the spring bars and press until the retention click. Avoid abrupt lateral movement that could deform the spring bars.
Is a 20mm aftermarket strap compatible with the 2232.30.00?
Yes, provided the lug width is exactly 20 millimetres. Always verify the strap's technical specifications before purchase. A tolerance of half a millimetre (19.5mm or 20.5mm) would cause gaps between lug and lugs. Custom bespoke straps guarantee perfect compatibility as they are crafted to certified Omega specifications.
How long does a leather strap last on a Seamaster Diver 300M?
Durability depends on material and use. Shell cordovan, with vegetable tanning, resists 3-5 years in daily wear, developing a fascinating patina. Dyed alligator with conservative standards (no intense perspiration, no immersion) reaches 4-6 years. FKM rubber or technical rubber straps have indefinite durability if kept clean. The Casati Milano atelier offers 18-month warranty and leather regeneration services with nourishing oil application.
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

