Sinn Watch 156.1 Vintage Black With Red Seam 156.030 Vintage Black. The historic pilot's chronograph with SINN chronograph movement SZ01. A unique combination of past and present: this is probably the essence ofthe unmistakable charm of this historic pilot's chronograph. Responsiblefor this is a contemporary interpretation that skilfully picks up andcontinues the traditional thread of a timepiece that is very popular withwatch enthusiasts. In order to correctly categorise the historical lineage ofthe 156.1 model.