Pre-owned Omega Speedmaster Racing ref 329.23.44.51.06.001 (2018). This is a more modern, performance-focused take on the Speedmaster, with design cues that draw heavily from Omega’s motorsport heritage. The 44.25mm stainless steel case is paired with an 18k Sedna gold bezel, Omega’s proprietary rose gold alloy, along with a silicon nitride bezel ring featuring a Ceragold tachymeter scale. The matte grey dial is defined by its distinctive racing-style minute track, along with Sedna gold hour markers and hands that add warmth and contrast without overpowering the watch. A date window at 6 o’clock keeps the layout balanced, while the grey leather strap complements the overall tone perfectly. Inside is the caliber 9900, a Co-Axial Master Chronometer movement certified by METAS for exceptional accuracy and magnetic resistance. Shop OMEGA Speedmaster Collection