Longines "Regatta Timer" diver/chronograph [ca. 1968]

  • Movement: hand-wound Valjoux 72 chronograph with column-wheel switching.
  • Case: stainless-steel, ~44mm Ø.
  • This diver/chronograph was offered alongside a non-chronograph "ultra-chron" diver variant, with an identical case featuring dual-crowns and similar orange accents - such as this one.