The Mühle-Glashütte S.A.R. Rescue-Timer is a mechanical watch whose design was shaped with input from German maritime rescuers—not merely a dive watch with a rescue-themed name. Mühle-Glashütte says the DGzRS rescue-boat captains significantly influenced its function and design, and that the model launched in 2002 for conditions aboard rescue cruisers on the North and Baltic Seas.
What makes the S.A.R. Rescue-Timer a rescue watch?
The distinction is its stated design brief. Mühle-Glashütte says the German Maritime Search and Rescue Association (DGzRS) rescue-boat captains were significantly involved in developing the watch’s function and design. The manufacturer dates the launch to 2002 and describes the watch as made for the demands aboard rescue cruisers on the North and Baltic Seas. These are the manufacturer’s account of the model’s history and intended context.
That context is reflected in the case details. Mühle-Glashütte describes the soft, rounded rubber bezel as protection against impacts and as a way to reduce the risk of injury from sharp edges during rescue operations. The manufacturer also specifies an anti-reflective sapphire crystal; its LUMEN feature page describes the crystal as 4 mm thick.
How the standard black-dial configuration is specified
The cited standard example is reference M1-41-03-KB, a black-dial model on a 20 mm rubber strap. Mühle-Glashütte lists a 42.0 mm stainless-steel case with rubber bezel, screw-down crown, anti-reflective sapphire crystal, and automatic SW200-1 movement in the manufacturer’s version.
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- Movement: automatic SW200-1, Mühle version; stop seconds and quick-set date.
- Display: black dial with Super-LumiNova-coated hands and indices.
- Power reserve: up to 41 hours, according to the manufacturer.
- Water resistance: rated by the manufacturer up to 100 bar.
What changes on the LUMEN?
The LUMEN is a distinct dial configuration, not simply the standard black dial with brighter markers. Its cream dial is coated with Super-LumiNova and is fully luminous; black skeletonized hands provide contrast, and the date is positioned at four o’clock. The LUMEN listing cited here is reference M1-41-08-MB-II, on a 20 mm bracelet.
Mühle-Glashütte lists this LUMEN configuration at 42.0 mm in diameter and 13.5 mm in height, with an automatic SW200-1 in its version and up to 41 hours of power reserve. The cited listing gives it the same manufacturer-stated water resistance of up to 100 bar as the standard reference. Its specified sapphire crystal is 4 mm thick.
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Standard and LUMEN configurations compared
| Specification | Standard black-dial example | LUMEN bracelet example |
|---|---|---|
| Reference | M1-41-03-KB | M1-41-08-MB-II |
| Dial and low-light display | Black dial; luminous hands and indices | Fully luminous cream dial; black skeletonized hands |
| Strap or bracelet | 20 mm rubber strap | 20 mm bracelet |
| Case diameter | 42.0 mm | 42.0 mm |
| Case height | Not stated in the cited standard listing | 13.5 mm |
| Movement and maximum power reserve | Automatic SW200-1, Mühle version; up to 41 hours | Automatic SW200-1, Mühle version; up to 41 hours |
| Water resistance | Manufacturer-rated up to 100 bar | Manufacturer-rated up to 100 bar |
These are specifications for the cited references, not a guarantee that every Rescue-Timer configuration has the same dial, strap or bracelet, or dimensions. Check the manufacturer’s listing for the exact reference being considered.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What a 100-bar rating does—and does not—tell you
Mühle-Glashütte states water resistance up to 100 bar for both cited configurations. That is the manufacturer’s rating, not an independent test result or a blanket assurance that the watch is suitable for every activity or operating condition. The available product information does not establish activity-specific guidance, so the rating should not be treated as a substitute for instructions applicable to the exact watch.
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