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The TIEFENMESSER collection takes its inspiration from the materials that feature so prominently in submarine equipment: the steel of the instruments measuring pressure and depth, and the bronze and brass of a periscope – all of these being the hallmark of what makes these models so unusual. The two TIEFENMESSER models have a white dial, a blued hand, industrial-style black and blue index markings, aged leather straps and a single aperture for the time. The power reserve here is displayed in the form of a mechanical gauge with a red background. Both these two submersible models are watertight to 50 metres.



In order to fine-tune the precision mechanism so that the three complications on the timepieces can be displayed, RESERVOIR Watch has joined forces with one of the best-known Swiss watchmakers, specialised in designing high complication movements. 
A 97-part proprietary watchmaking module has, to this end, been specially drawn up and patented. The module is powered by the ETA 2824-2 movement, widely acclaimed for its reliability and precision, oscillating at 28800/h.
All RESERVOIR watches feature a retrograde minute hand, a jumping hour and a 34-hour power reserve.
Swiss Made

Qualified watchmakers design, assemble and check the meticulously calibrated settings of RESERVOIR watches in Switzerland, and the fact that the checks are so thorough, and that such attention is devoted to every minor detail, means that RESERVOIR Watch timepieces are truly proud to display their SWISS MADE label: an emblem of high-quality watchmaking achieved through a patented proprietary module comprising 97 components.


  • Retrograde minute
  • Jumping hour
  • Power reserve
  • ø 43mm
  • Case in 316L stainless steel
  • Satin finish
  • Screw-down crown
  • Anti-reflective sapphire crystal
  • Case-back opened at 240 degree
  • Automatic movement
  • Water resistant 5 ATM
  • White dial
  • Mechanical gauge power reserve, red background
  • Vintage brown leather strap
  • Stainless steel butterfly folding clasp