IWC GST Aquatimer

The GST Aquatimer is a dive watch by IWC.

This dive watch classic has a titanium or steel case with a extreme water resistance to 2000 m.

Ref. 3536 Movement: Self-winding calibre 37524 (basis ETA 2892-2), 28,800 A/h Central seconds with stop mechanism, black date disc with white numerals 21 jewels Glucydur balance wheel Nivarox hairspring, shockproof and anti-magnetic Power reserve: 42 hours Case: D 42 mm, H 14.5 mm Weight: ca. 175g (titanium version: ca. 116g) Unidirectional rotating, ratcheting diving bezel with polished relief figures, secured against unintentional adjustment Crown screwed within, 6.6 mm diameter, 3 seals, separate crown tube Domed sapphire crystal (not antireflective because of glass thickness of 2.7 bis 3.7 mm) Waterproof to 2000 m / 200 bar Dial: Superimposed, rhodinated hour markers, dark gray / matte black dial Bracelet: Proprietary IWC metal bracelet system with safety lock buttons or Velcro tape Optionen: Black Velcro tape with Velcro closure ([titanium]] and steel design, Nr. A04920 and A04925) for diving Variations: Titanium case with black dial, white hands and white, superimposed hour markers Specialties: Till 2001: steel version with silver dial (ca. 600 to 800 pieces), goldenen hands and golden, superimposed hour markers

Ref. 3536-001 from 1998 Calibre 37524 Case and bracelet in titanium, external bezel, dial black Ref. 3536-002 from 1998 Calibre 37524 Case and bracelet in steel, external bezel, dial black Ref. 3536-003 from 1998 Calibre 37524 Case and bracelet in steel, external bezel, dial silvered, hands and indexes gilded

Literature

• IWC-Uhren. Die "Schaffhauser" and ihre Geschichte; Author: Reinhard Meis; ISBN 3853782531
• IWC, International Watch Co. Schaffhausen, Engl. ed.; Authors: Hans-F. Tölke, Jürgen King; ISBN 3906500152
• Armbanduhren-Spezial: IWC-Geschichte, Design, Technik; Author: Jörg M. Mehltretter; ISBN 3898800458
• IWC - Die Noblen aus der Schweiz. Handbuch für den Uhrensammler; Author: Jörg M. Mehltretter; ISBN 3898802272
• IWC, International Watch Co. Schaffhausen, Luxusausg. Engl. Ed.; Authors: Hans-F. Tölke, Jürgen King ISBN 3906500160