Marathon GSAR Arctic.
A retired paramedic who now works as a lifeguard, specialising in open water at triathlons, wearing a Marathon GSAR Arctic. In this photo he is watching over more than two hundred swimmers at a local race. Two hundred people in open water, and one set of eyes deciding which head that went under is going to come back up on its own. What is the largest number of people you have ever been responsible for at once? If you have a wrist shot from somewhere that matters, submit at the link in bio. Tempus Est Potentia.
Intel Report
Marathon GSAR
Marathon has been making watches under government contract since the Second World War, and the GSAR is the modern centerpiece: a search and rescue diver built in La Chaux-de-Fonds to a military specification, not a marketing brief.
The arctic dial is the white version, originally specified for legibility against snow. Illumination comes from tritium gas tubes, which glow continuously for decades without needing a charge from sunlight, because a watch that needs charging is a watch that fails at night.
Most tool watches borrow military language. A Marathon is the actual issued article, available to the rest of us as a side effect.