Montique 50 ATM

Case Diameter: 44 mm
Case Height: 13 mm
Case length: 45 mm
Lug Width: 20 mm
Movement: ETA 2783, 17
jewel automatic. Quick-set
date, 21,600 bph, 42  hour
power reserve
Case material: Stainless
steel
Crown: Screw down
Bezel: Bi-directional,
indexed w/ 60 clicks
Water resistance: 50 ATM
Features: Montique signed
movement and case back
Vintage: Early '70s
This is a very uncommon vintage dive watch, and an even more uncommon
manufacturer. I have only seen one other example of this model watch, and it
is this
Elgin seen below. I have not seen the Montique name before and
have found no information relative to this company.