manual-wind, two-register chronograph (30 minute capacity) in a chrome-plated case; uses Valjoux VZ movement (13 ligne)

Flieger (pilots) chronographs feature chrome-plated cases with rotating coin-edge bezel, with triangular marker; two-register chronographs, Valjoux 22 movement

Reference 351 is a manual-wind, two-register chronograph (30 minute capacity), with a porcelain dial; Valjoux 22 movement; single pusher

Reference 2403 is a manual-wind, two-register chronograph (30 minute capacity) in a stainless steel case; uses Landeron 13 movement (13 ligne)