The alarm function is wound and set via the upper crown and when activated, a hammer strikes a pin and vibrates a protrusion on the inside of the caseback, so the wearer not only hears the buzzing but feels it as well. Pretty cool and very useful.The GST Automatic Alarm is not a Omega Speedmaster GMT we see come up for sale often. But one from 2005 is for sale now on TimeZone.com from a reputable seller. The watch is just back from a full IWC service and comes with all packaging and ***s. The price is pretty attractive too, considering what youre getting – a JLC-derived mechanical alarm complication inside a gorgeous titanium IWC case.
Its no secret that we love mechanical alarm complications. And nobody does them better than Jaeger-LeCoultre. Their Memovox Omega Speedmaster GMTare legendary and weve featured a few here on Hodinkee. Its also no secret that we love tool watches – no nonsense rugged pieces that were born for a specific purpose. And here the International Watch Company shines – the Big Pilot, the Aquatimer, and the Ingenieur – all tool watch legends. So what happens when you put a JLC alarm movement inside an IWC? Read on.IWC is one of the few Swiss watch companies located in the German-speaking part of Switzerland, and it has always stood a little bit apart from its French-speaking cousins with its clean Teutonic aesthetics, innovative engineering and some legendary pieces. Not to mention its American roots. In the late 1990s, IWC introduced their GST line of watches. GST” stood for Gold, Silver Steel and Titanium, the metals in which this series was available. Angular design, innovative bracelet and strap systems and minimalist dials characterized the Omega Speedmaster GMT. The Aquatimer is perhaps the best known of the bunch. The least known? This one – the GST Automatic Alarm.With its dual crowns and titanium case, the Automatic Alarm could easily be mistaken for its deep diving brethren. But housed within beats a movement derived from Jaeger-LeCoultres caliber 916, with 22 jewels and a power-reserve of 44 hours.
