Omega Speedmaster Professional "Sapphire Sandwich" 2021


Omega Speedmaster Professional 310., 31030425001002, 'First Watch Worn on the Moon', stainless steel on a newly designed stainless steel bracelet, manual wind Omega co-axial caliber 3861 movement, 12-hour chronograph, 50-hr power reserve, black dial, sapphire display back, water resistant to 100ft, diameter: 42mm, thickness: 14mm. Like New with Omega box and papers dated 2021.

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More about Speedmaster Professional "Sapphire Sandwich" 2021

This is a stainless-steel Omega Speedmaster Professional "Sapphire Sandwich" 310. It includes a newly designed stainless-steel bracelet with a folding deployant clasp and a scratch resistant sapphire crystal with anti-reflective coating. It has a signed winding crown with crown guards, round chronograph push buttons, and there is a screw down sapphire caseback engraved around the edge with "CO-AXIAL MASTER CHRONOMETER THE FIRST WATCH WORN ON THE MOON". It also has "STAINLESS STEEL and the Omega stamp underneath the lugs. The 42mm diameter barrel-shaped solid three-body case, gently curved lugs, bracelet, and black anodized aluminum bezel with a silver "dot over 90" tachymeter scale to 500 UPH, are polished/satin brushed. The dial is matte grained black with luminous cream-colored Super-LumiNova baton hour markers surrounded by a white perimeter 1/5 second/minute scale, an applied Omega emblem at 12 o'clock, and it has pointed white baton steel hour and minute hands with Super-LumiNova fill and a white steel center sweep second hand with a teardrop and needle indicator and a wedge-shaped counterbalance. There are three black recessed "Pie-tin" compax-configured subsidiary dials with white Arabic numerals, markers, and indicator hands including a small constant running seconds register at 9 o'clock, a 12-hour chronograph totalizer at 6 o'clock, and there is a 30-minute chronograph counter at the 3 o'clock position. It's water resistant to 50 meters/165 feet, it has a 50-hour power reserve at full winding, and the 14mm thick case, dial, and movement are all signed. This Omega Speedmaster Professional "Sapphire Sandwich" 310. has a mechanical in-house manual winding Omega co-axial Certified Master Chronometer (approved by METAS) caliber 3861 (an updated version of the Omega caliber 861/1861 based on the Lemania caliber 1873) movement. It's rhodium plated with Cotes de Geneve wave embellishment, circular graining, gold-filled engraving, and beveled edges. It's constructed with 26 jewels, a horizontal clutch, an anti-shock system, a hacking feature for precision time setting (by pulling out the crown), and a free-sprung balance with an Si14 silicon balance spring. It's resistant to magnetic fields up to 15,000 gauss and the mechanism oscillates at a frequency of 21,600 vph (3Hz). The Omega Speedmaster Professional "Sapphire Sandwich" 310. was introduced in 2021 and is the new iteration of the watch designed by Omega's Claude Baillod and chief engineer Pierre Moinat in 1957.

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