Muhle Glashutte Watch S.A.R. Rescue-Timer Lumen M1-41-08-KB. The Muhle Glashutte watches S.A.R. Rescue-Timer is in action at the German sea rescuers. There it is used, for example, as a timer during night operations, when the lights in the ships are darkened. Thanks to the generous equipment with Super-LumiNova, times for operational reports can then also be precisely logged. The excellent night readability of our Muhle Glashutte S.A.R. Rescue-Timer we are now dedicating a very special model, the S.A.R. Rescue-Timer LUMEN.