Omega Speedmaster Platinum Calibre 321 Chronograph 2021


Omega Speedmaster Platinum Calibre 321 311., 31193423099001, Platinum case on a Omega Non-Grained alligator leather strap with pin buckle, manual wind Omega caliber 321 movement, 12-hour chronograph, 55-hour power reserve, black dial with luminous hour markers and hands, sapphire crystal, display back, water resistant to 5 bar, diameter: 42mm, thickness: 13.4mm. Like New with commemorative Omega box, loupe, straps, and papers from 2021.

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More about Speedmaster Platinum Calibre 321 Chronograph 2021

This is a 950 platinum Omega Speedmaster Professional Moonwatch Caliber 321 Chronograph 311. It includes a Platinum case on an alligator leather strap with a platinum pin buckle and scratch resistant sapphire crystals (domed over the dial). It has a signed screw-down winding crown, round chronograph push buttons, and a screw down exhibition sapphire crystal case back engraved with “SPEEDMASTER – THE FIRST WATCH WORN ON THE MOON.” The 42mm diameter barrel-shaped three-body case, curved lugs, and ceramic black flat bezel with a white tachymeter scale to 500 UPH, are polished/brushed. The dial is black onyx with applied platinum baton hour markers with luminous white inserts around a white perimeter minute/second scale. It has pointed white gold hour and minute hands and a white gold center sweep chronograph second hand with a white luminous arrow tip and a wedge-shaped counterbalance. There are three compax-style recessed white gold-ringed meteorite subsidiary dials with white Arabic numerals, markers, and white gold indicator hands, including a constant running small seconds register at 9 o’clock, a 12-hour chronograph counter at 6 o’clock, and there is a 30-minute chronograph counter at 3 o’clock. It has a 55-hour power reserve at full winding, it’s water resistant to 50 meters/165 feet, and the 13.4mm thick case, dial, and movement are all signed. This Omega Speedmaster Professional Moonwatch Caliber 321 Chronograph 311. has a mechanical manual winding Omega caliber 321 movement with copper-toned, rhodium and gold finishing and a shock absorber mechanism. It's constructed with 17 jewels, a straight-line lever escapement, a pillar wheel sub second, and an anti-magnetic monometallic balance. It includes a self-compensating flat balance spring, an index regulator, and the mechanism oscillates at a frequency of 18,000 vph (2.5Hz). Omega Speedmaster Professional Moonwatch Caliber 321 Chronograph 311. was introduced in 2019.

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