Finishing is what really makes or breaks a skeleton, and the 1200S1 does not disappoint with its crisp bridges, mainplate, and wheels decorated with satin-brushed and radial sunburst finishes and meticulous anglage (beveling) highlighting the interwoven architecture. A mix of contrasting polished and brushed surfaces add depth and dimension for enhanced light play. And for a finishing touch, the micro-rotor, visible through the caseback, is embellished with the Piaget coat of arms.