ETA SA ETA/Unitas 6497-1

The ETA/Unitas 6497-1 is a manual-winding movement manufactured by ETA SA. Launched in 1950, it remains in production and operates at 18,000 vph with a small seconds display at 9 o'clock. Based on the historic Lépine pocket watch layout, it belongs to the Unitas 6497/6498 caliber family. The movement is notably used by Stowa in their Marine line, particularly in larger case variants.