Introduction
Introduced in the late 1990s, IWC Schaffhausen's GST collection represented the brand's vision of the modern luxury sports watch. Offered as a chronograph, diver's watch and alarm model, the collection took its name from the three materials in which it was available—Gold, Steel and Titanium. Characterised by clean, functional styling, integrated bracelets and superb everyday wearability, the GST range has quietly become one of IWC's most admired neo-vintage collections.
The GST Alarm stands apart as perhaps the most technically intriguing member of the family. Beneath its understated exterior lies IWC's calibre 917, a heavily reworked version of the highly regarded Jaeger-LeCoultre calibre 916, one of the finest automatic mechanical alarm movements ever produced. Housed within a lightweight 40mm titanium case, the movement combines robust everyday reliability with the practicality of a mechanical alarm complication, making the GST Alarm an elegant blend of engineering excellence and purposeful design that remains as compelling today as it was at launch.
Loupe This Scorecard
Grade
M 8.5
Status
Vetted & Approved
Included
Travel roll
Est. value range
$2,000 – $3,000
The Details
Brand
IWC
Dimensions
40mm
Model
GST Alarm
Movement
Automatic IWC calibre (based on Jaeger-LeCoultre 916)
Reference
IW353701
Bracelet
Titanium bracelet
Year
Circa 2000s
Condition
Excellent
Material
Titanium
Included
Watch roll
Dial Color
Black

THE DIAL
The matte black dial reflects IWC's functional design philosophy, with bold luminous hour markers, crisp typography and a discreet red-tipped alarm indicator. The result is a display that prioritises clarity while remaining unmistakably IWC.

THE CONSTRUCTION
Crafted entirely from titanium, the GST Alarm offers exceptional strength with remarkably low weight. The integrated bracelet and balanced proportions create a comfortable, highly wearable sports watch that remains as contemporary today as when it was introduced.

TIMING MACHINE READOUT
This reading was taken (crown down) with a ONEOF Accuracy Boutique Edition timing machine at time of cataloging. It is provided as a courtesy only, and shall not be construed as a warranty or guarantee of any kind. Please refer to our terms and conditions of sale for more information.
Condition
Watch is in overall excellent condition. The titanium case shows a few light surface marks, while the case back retains well-defined engravings. The bezel has some small nicks around the edge and light surface scratches. The dial and hands are near mint. It is fitted with a titanium bracelet showing light surface marks and negligible play between the links. The bracelet is fitted with 16 links and fits approximately a 7” wrist. Comes with an IWC single watch roll.
Our Perspective
The GST Alarm represents one of the most compelling values in modern IWC collecting. Combining a genuinely useful mechanical complication, lightweight titanium construction and the restrained design language that defined the brand at the turn of the millennium, it remains an underappreciated reference that continues to reward collectors seeking something both distinctive and eminently wearable.












