2006 Sinn 103.Asa Chronograph £1,900.00 2006 Sinn 103.18721 Automatic Chronograph. Sinn are well bilt robust watches. This perticular watch houses the ETA 7750 movement which is well known for being reliable. A rubber strap is also included with the watch. Dial Colour: Black Collection: Chronograph 103SA Style: Chronograph Case Material: Stainless Steel Case Diameter (mm): 42mm Clasp: Deployment Strap: Stainless Steel Glass: Sapphire Movement: ETA 7750 Water Resistance: 200 meters Features: Chronograph and Date Stock Code: SIN001 Watch comes with original box, papers and a two year Ian Walsh Watchmaking guarantee.