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The TIEFENMESSER collection takes its inspiration from the materials that feature so prominently in submarine equipment.

The new yellow and black SEA HORNET limited edition is adorned with a black dial, a yellow hand on an index with a design close to depth gauges of post-war period’s american submarines.

The power reserve here is displayed in the form of a mechanical gauge with a red or yellow background. This new submersible model is watertight to 50 metres.


In order to fine-tune the precision mechanism so that the three complications on the timepieces can be displayed, RESERVOIR has joined forces with one of the best-known Swiss watchmakers, specialized in designing high complication movements. A 124-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 37-hour power reserve.
Swiss Made

Qualified watchmakers design, assemble and check the meticulously calibrated settings of RESERVOIR watches in La Chaux-de-Fonds, Switzerland. The fact that the checks are so thorough, and that such attention is devoted to every minor detail, means that RESERVOIR is truly proud to display the SWISS MADE label: an emblem of high-quality watchmaking achieved through a patented proprietary module comprising 124 components.

  • ø 43mm
  • Black PVD 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
  • Black dial, yellow index
  • Mechanical gauge power reserve, yellow background
  • Black leather strap
  • Black PVD butterfly folding clasp