Opus Chronograph is a watch collection by Chronoswiss.

Original model: Chronoswiss Opus (1995)

The watches in this line are updated reissues of the Opus developed by Gerd-Rüdiger Lang, one of the world’s first mass-produced fully skeletonized automatic chronographs.

• Caliber C.741S (based on Valjoux 7750), 4 Hz
  • Automatic
  • Rotor skeletonized, with Côtes de Genève finish
  • Power reserve approx. 46 hours
• Case Titanium / Stainless steel, satin-finished and polished
• Diameter 41 mm, H 14.8 mm
• Chronograph
• Water resistance 10 atm
• Limited edition: 30 (Purple Rain)

Model variants:

• Purple Rain: Bright purple CVD-coated titanium case and UV-reactive white strap that turns purple in sunlight
• Dakar: Sand-colored nubuck leather strap and warm brown CVD-coated dial
• Opus: Slightly updated original model, stainless steel case
• Opus Titanium Green: Titanium case, green dial
• Opus Titanium Blue: Titanium case, blue dial