“Waterproof 20 atm tested”. Steel, 200m full size Monnin cased diver. Mechanical movement (NB! not Quartz): ETA NF 2873, 17 jewels automatic. Mineral glass. Text inside caseback reads: Brevet 503.305 M.R.P. SA. 77-5. Case width 42mm. Ca 1980 (May 1977?). The “Monnin” divers came with both mechanical and Quartz movements. This also has the added distinction of a fully signed crown and caseback (the crown has a damage though). These Sky Divers are rare in this condition. A super vintage diver, fully serviced, with our 12 months watchmakers guarantee.