Issued equipment.
The Marine Nationale, the French Navy, issued the Aquastar Benthos (third generation) to its combat divers from 1979 to 1984. The Benthos carried the patented no-decompression dive bezel (CH 436 140, inventor Marc Jasinski, filed 15 May 1964), which displayed decompression-time information directly on the bezel.
Procurement records, serial-number ranges and the exact issuance period are held in the Aquastar archive in Bienne. Collectors and inheritors of M.N.-marked Benthos models who want to confirm provenance can contact the workshop directly.