Drawing directly from the original 1957 design, this Speedmaster '57 houses a COSC-certified automatic chronometer movement within a round stainless steel case measuring 41.5mm in diameter and 16.5mm in thickness. A transparent case back puts the Co-Axial movement on display, while the fixed bezel and anti-reflective scratch-resistant sapphire crystal complete the purposeful, heritage-driven profile.
The blue dial brings a contemporary note to the classic chronograph layout, and water resistance is rated to 100 meters (330 feet). The push-button folding clasp secures a stainless steel bracelet finished in a combination of brushed and polished surfaces, lending the piece a refined yet robust character.
Reference 331.10.42.51.03.001 is a compelling expression of Omega's Speedmaster lineage — blending motorsport-era aesthetics with modern movement technology in a versatile 41.5mm package.