Strap for Seamaster Diver 300M Automatic 41.5 Chronograph Yellow Gold / Silver / Bracelet

The Omega Seamaster Diver 300M reference 2198.80.00 is fitted with a 20 mm lug width, measured between the two lugs of the case. This dimension is standard for Seamaster models of this generation and is compatible with all 20 mm straps available in the milanostraps.it catalog.

Alligator represents the classic choice to maintain aesthetic coherence with yellow gold. For those preferring chromatic character, aged shell cordovan (wine-red border) creates a rare visual synergy with the yellow metal. Vegetable-tanned calfskin offers sustainable robustness and predictable patina over time, ideal for those intending to actually use the watch in water.

Remove the current strap by unscrewing the attachment pins. Position the watch on a table with the case facing upward. Measure with a digital or mechanical caliper the horizontal distance between the two lugs. In the case of your Seamaster 2198.80.00, this measurement must be exactly 20 mm to ensure compatibility with the new strap.

Yes, provided the strap is specifically constructed for 20 mm lug width. The artisanal straps from milanostraps.it are made with custom lugs and calibrated-thickness pins, guaranteeing perfect fit on your case lugs. The 20 mm lug width is an industry standard widely diffused, so the range of choice is very broad.

Durability varies based on material and use. An alligator or shell cordovan strap with ordinary maintenance (immediate drying after salt water contact, natural wax treatment every 6-8 months) lasts 5-7 years. Vegetable-tanned calfskin is more resistant to humidity, lasting 7-10 years. Casati Milano offers an 18-month warranty on all artisanal straps, with the possibility of repair or partial replacement in case of ordinary wear.