Some information from my watch reference book.
GST Aquatimer
Reference number: 353601
Movement: automatic, IWC C.37524, (base ETA 2892-A2); 25.6mm, height 3.6mm, 21 jewels, 28800 vph
Functions: hours, minutes, sweep seconds, date
Case, titanium, 42mm, height 14.5mm, undirectionally rotating bezel with 60 minute scale, sapphire crystal, screw in crown, water resistant to 200 atm
Band: titanium, clasp with security button
Price: $4000
Variations: in stainless steel.