SARPANEVA K3 Northern Stars "One of the Ten" (Pre-Owned)The rare K3 Northern Stars from the enigmatic Stepan Sarpaneva. IMO the coolest moon phase watch in the world! For his iconic moon phase watches, Stepan modifies the quick set calendar mechanism of the Soprod A10 caliber to work perfectly as a moon phase complication. Stepan introduces a wheel with 59 teeth (two teeth for each day of the 29. 5 day cycle) in place of the date wheel which ordinarily has 31 teeth. He then takes added steps to ensure the