Omega Speedmaster Curved Rubber Strap — Black

This curved-end FKM rubber strap is precision-moulded to the exact case geometry of the Omega Speedmaster Professional Moonwatch. Where standard straight-end straps leave a visible gap at the lug, the curved ends sit flush against the case shoulders — eliminating that gap entirely and giving the watch the integrated, factory-fitted appearance that the Speedmaster's lyre lug profile was designed for.

The mould is built specifically around the 42mm Speedmaster case. Not adapted from a generic template, not a close fit — exact. The result is a strap that looks as if it left the Omega service centre with the watch.

FKM fluoroelastomer is the material choice here. The same class of rubber used in aerospace seals and high-performance industrial environments, chosen because it resists heat, sweat, UV exposure and saltwater without cracking, fading or hardening over time. The ribbed texture adds grip and structure while keeping the profile clean. Brushed stainless steel buckle. 20mm lug width.

Key Features

• Precision-moulded curved ends for seamless Speedmaster case integration
• FKM fluoroelastomer — heat, sweat and UV resistant
• Ribbed texture profile
• Brushed stainless steel buckle
• 20mm lug width

Fits:

• 311.30.42.30.01.005 — Hesalite Moonwatch
• 310.30.42.50.01.001 — Co-Axial Master Chronometer Moonwatch
• 311.33.42.30.01.002 — Sapphire Sandwich
• All standard 42mm Speedmaster Professional references

Wrist Fitment:

• Standard – for wrists 15-20.5cm (6"-8")