Marathon Chronograph Pilot or Scuba Diver Men's Watch.  It is Swiss Made

Caliber ETA Valjoux 7750, mechanical movement

Automatic Winding with 28,800 balance-0wheel oscillations per hour

25 jewels, scratch-resistant sapphire crystal

Incabloc shock protetion of balance wheel, Nivarox No. 1 hairspring

42 hours minimum reserve power (when fully wound)

Chronograph read-out (countdown) 60 seconds, 30 minutes, 12 hours on sub-registers

Heavy-duty stainless steel case - weight 156 grams

Tritium gas tubes are fittted to hour and minute hands and to each hour index

Superluminova C3 luminous triangle on turning bezel and more

Waterproof to depth of 300 m/ 1000 feet

Diameter of 46.6 mm

This is a very, very classy watch!