IWC GST Aquatimer

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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