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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.
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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
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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
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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