Omega Speedmaster Two Counters 311.90.44.51.03.001 2017 [Preowned] wsta0109 so parts availability and service

so parts availability and service infrastructure remain current

Screw-down crown

not a reskinned 126710

the slender 37mm case is just 5

at a more accessible price

Omega Speedmaster Two Counters 311.90.44.51.03.001 2017 [Preowned] wsta0109 so parts availability and serviceOverview The classic Speedmaster Professional runs three subdials; the 311. 90. 44. 51. 03. 001 runs two. That structural difference is not cosmetic: the bicompax layout has distinct historical roots in Swiss chronograph design, and the Two Counters presents it with the Calibre 9300, a Co Axial movement that departs significantly from the Moonwatch's manually wound lever escapement. For a buyer who knows the Speedmaster range, this is the reference