This replica Speedmaster 310324 black puts the current-generation Moonwatch Professional on your wrist in its most iconic configuration. Reference 310.32.42.50.02.001 represents the latest evolution of the Speedmaster Professional chronograph, now fitted with the manually wound Co-Axial caliber rather than the legacy 1861. The 42mm stainless steel case retains the asymmetric crown guards and twisted lug geometry that have defined every Speedmaster Professional since the late 1960s. A sapphire sandwich caseback lets you see the movement architecture without sacrificing the solid feel on the wrist.

Technical Overview

• Case diameter: 42mm
• Case material: stainless steel with polished and brushed finishing
• Bezel: black aluminum tachymeter, dot-over-90 design
• Crystal: sapphire front, sapphire display caseback
• Dial: matte black with applied Omega logo and luminous hour markers
• Bracelet: stainless steel with polished center links
• Functions: chronograph, small seconds, 30-minute counter, 12-hour counter

The dot-over-90 bezel detail is a signature of the modern Moonwatch that collectors check first. Step-edge case sides and a thinner profile compared to earlier references give the 310.32 a noticeably sleeker silhouette than its predecessors.

Inside the Movement

At the heart of this Speedmaster Professional sits a hand-wound chronograph caliber descended from Omega’s Co-Axial Master Chronometer platform. The column-wheel mechanism delivers a clean start-stop-reset action across all three subdials. Compared to the older 1861, the updated architecture adds a silicon balance spring and a free-sprung balance, improving long-term rate stability. The sapphire caseback turns that mechanical detail into a visible feature rather than a hidden one. Three subdials at 3, 6, and 9 maintain the classic tri-compax layout that defined the original speedmaster moonwatch chosen for NASA’s Apollo missions. For a different take on the same movement family, the Dark Side of the Moon 311.92.44.30.01.001 wraps similar chronograph functionality in a 44.25mm black ceramic case aimed at a bolder audience.

What Sets It Apart

The 310.32 sits at the center of the Speedmaster lineup as the definitive modern Moonwatch. Where limited editions chase themed dials and colored accents, this reference focuses on the core formula: black dial, steel case, tachymeter bezel, hand-wound chronograph. It is the version most directly linked to the original speedmaster professional worn during every crewed NASA mission from Gemini through Apollo. That heritage combined with current-generation movement technology makes this replica Speedmaster 310324 black a straightforward entry point into the collection.