Omega 310.60.42.50.10.001 Speedmaster Moonwatch Professional "Moonshine", 31060425010001, 18K "Moonshine" yellow gold alloy on a matching yellow gold bracelet with deployant buckle, manual wind Omega caliber 3861 movement, 12-hour chronograph, green dial, green bezel with gold tachymeter scale, display caseback, water resistant to 50 meters/167ft, diameter: 42mm, thickness: 13.2mm. Unworn with Omega box and papers dated 2023.

This is an 18k "Moonshine" yellow gold Omega Speedmaster Moonwatch Professional 310.60.42.50.10.001 on an 18K "Moonshine" yellow gold bracelet with a folding deployant clasp, and a sapphire crystal. It has round "pushrod" style chronograph push buttons, and a protected signed winding crown. There is a display screw down case back that reads "THE FIRST WATCH WORN ON THE MOON; CO-AXIAL MASTER CHRONOMETER". The 42mm diameter solid three-body case, gently curved lugs, and bracelet, are polished/brushed. It has a green bezel with a tachymeter to 500 UPH, and "Speedmaster Professional" on the green dial. It includes pointed high-polished yellow gold baton hands with luminous inserts, and a center sweep chronograph seconds hand with a luminous arrow and a needle tip. It has applied faceted indices. There are three recessed subsidiary dials with yellow gold Arabic numerals and markers, and gold indicator hands, including a 60-minute running small seconds register at 9 oclock, a 12-hour totalizer at 6 oclock, and there is a 30-minute chronograph totalizer at 3 oclock. It has a 48-hour power reserve at full winding, and its water resistant to 30 meters/100 feet. The 14mm thick case, dial, and movement are all signed.

The Omega Speedmaster Moonwatch Professional "Moonshine" 310.60.42.50.10.001 has a mechanical manual winding caliber Omega 3861 chronograph movement. Its gold plated and its constructed with 26 jewels, a straight-line lever escapement, an anti-shock device, a free sprung balance with a silicon balance spring, and a micrometer regulator. The mechanism oscillates at a frequency of 21,600 vph (3 Hz). The caliber 3861 is an updated version of the 1861 and carries the Master Chronometer certification and resists magnetic fields up to 15,000 gauss.