Underwater, a minute becomes something physical. Depth. Gas. Workload. Decompression. Each one puts a value on time, and generations of working divers have planned around the same finite resource: bottom time. That constraint helped shape the language of the dive watch. A 60-minute bezel that turns the passage of time into something visible. A dial built to be read quickly. Illumination that remains available when the light disappears. A case designed for an environment constantly trying to get inside it. Marathon’s #SearchandRescue dive watches grew out of that realm: equipment developed around real-world users in life-saving situations, where the usefulness of an instrument is measured by how little attention it demands while doing its job. The Arctic #GSAR carries that thinking forward. 300 metres of water resistance. Automatic mechanical movement. Tritium illumination. A stark white dial built for legibility. All surrounding one of the oldest and most consequential measuremen...