Speedmaster Professional Moonwatch

“Speedmaster Apollo 11 50th (steel)”

This 2019 reference commemorates the 50th anniversary of Apollo 11 as a steel limited edition. It is notable for introducing the upgraded caliber 3861 manual-winding chronograph, running at 21,600 vph with a longer 50-hour reserve, in the 42 mm stainless steel case with black matte dial, aluminum…

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