====== SZ01 ====== **Calibre SZ01** is an [[automatic chronograph]] movement from [[Sinn]] based on the [[Valjoux 7750]]. ===== Overview ===== Sinn has long used the Valjoux 7750 movement for their chronograph watches, but began reworking the movement in the 2003. Wanting a replacement for their [[Lemania 5100]] "stop minutes" chronograph, they reworked the chronograph counters entirely. Rather than using a [[subdial]], the chronograph minutes are displayed with a central hand, along with chronograph seconds and running hour and minutes. A 12-hour chronograph subdial at 6 00 completes the timing feature. Complementing the [[small seconds]] at 9 00 is a [[24 hour]] subdial at 3 00. The [[date window]] is placed at 4 30. ===== Applications ===== * [[Sinn EZM 10]] **Description:** * [[Automatic chronograph]] movement based on [[Valjoux 7750]] * Bi-directional winding **Functions:** * Hours, minutes, [[chronograph seconds]], and [[chronograph minutes]] central * [[Hacking]] [[small seconds]] at 9 00 * [[Chronograph hours|Chronograph 12 hours]] at 6 00 * [[24 hour]]s at 3 00 * [[Date window]] at 4 30 **Data:** * Ø 30 mm * 29 [[jewels]] * 28,800 A/h **Production period:** * [[2003]]-Present {{tag>Movements Valjoux_7750 Automatic_movements Automatic_chronograph_movements Sinn_calibres}}