The Omega De Ville ST 355.0803 is a distinctive, vintage dress watch launched by OMEGA in 1973 as part of its international collection. It is highly regarded by collectors for its geometric, retro-modernist 1970s aesthetic, featuring a striking rectangular layout and a sophisticated automatic movement.
Design and Aesthetic
  The watch embodies the bold architecture of 1970s horology. Its long, rectangular form factor wraps comfortably around the wrist, presenting a much larger presence than a typical 27mm square watch due to its 47mm span. The silver dial maintains a minimalist layout that enhances its clean dress watch credentials, usually finished with thin baton hands and a subtle date window depending on the caliber variation.
The Caliber 684 Movement
  Powering this timepiece is the compact OMEGA Caliber 684, a reliable, copper-colored automatic movement featuring 24 jewels. This caliber belongs to OMEGA’s family of downsized automatic movements originally designed to keep mid-century and 1970s rectangular or slim profile watches running seamlessly without requiring manual winding.

• Reference Number: ST 355.0803.

• Collection: De Ville International Collection (1973).

• Dimensions: 27mm width by 47mm lug-to-lug length.

• Case Material: Durable stainless steel.

• Dial: Sunburst silver dial with minimal, clean hour markers.

• Movement Type: Mechanical automatic winding.

• Caliber: OMEGA Caliber 684.

• Water Resistance: 3 bar / 30 meters (vintage rating, not recommended for modern swimming).

• Band: Integrated stainless steel link bracelet.