Laco Chronographs Havanna 861892

The movement is the Laco 50, an automatic chronograph calibre based on the ETA 7750, with a 40-hour power reserve, day and date, and minute and hour counters beside running seconds. The lugs take a 22 mm strap, and Laco gives the lug-to-lug length as 50 mm. Laco has since discontinued it.

The Chicago (861584) and Monte Carlo (861815) use the same 44 mm case with white and black dials. The Sylt (861789) and Trier (861915) are the smaller 42 mm models of the series.