Benthic COSC Professional Diver

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Benthic COSC Professional Diver


Limited Edition · Officially Certified Superlative Chronometer

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We are proud - in fact VERY proud - to present our first Superlative Chronometer, the Benthic COSC Professional Diver. Featuring a ETA 2892-2A movement that has been subjected to the rigors of a 16-day test at the COSC laboratory in Les Chaux de Fonds, Switzerland, this new diver has a large sapphire exhibition caseback that lets you peer into the inner workings of this beautiful timepiece and yet maintains a 200M water resistance rating. Very few Swiss-Made chronometers have this mix - unidirectional dive bezel, exhibition back and 200M rating. The case is 44mm in diameter, all stainless steel and like all Bathys Hawaii watches, fits comfortably on the wrist. The large, legible dial with triple-printed Superluminova indices is present as always - letting you merely glance at your watch even under the darkest conditions to read the time. 

We've made only 25 pieces and even before we officially released the Benthic COSC, almost half were spoken for. Now only a handful remain, and at $2195 you can understand that these won't hang around too long.

We've never been more proud to present a timepiece. 

In the 11 years we've been making watches, there has been a surge in the number of "micro-brands" like Bathys Hawaii - however the majority are made in China, not Switzerland. And none have ever presented a COSC-certified Diver. I'm not trying to denigrate these Chinese-made watches, some can be very nice - but if it doesn't say "Swiss Made" on the dial, you never really know what's inside or how it was manufactured. Every Bathys Hawaii watch is assembled by hand, by Swiss hands, in a Swiss Class 10 clean room located on the banks of the Aare River in Solothurn, Canton. Every watch undergoes extensive quality control from people who've been doing this their whole life. 

I can assure you it makes a difference in the quality of the final timepiece.

If you've ever wanted a watch you can wear everyday, straight from the office to the ocean - this just might be it.


  • 44mm 36L Stainless Steel case
  • Screw Crown; Unidirectional Diver Bezel with inset lume
  • Domed AR coated sapphire crystal
  • Sapphire exhibition case back
  • COSC-certified ETA 2892-2A Automatic Movement
  • Limited to 25 pieces in 2016
  • 200 Meter Water Resistance
  • Comes on Waterproof Black Leather Strap
  • Comes with individual COSC Superlative Chronometer certificate showing the timing performance of the associated watch
  • Each Benthic COSC comes in a special cherrywood presentation box, individually custom laser-etched with the Bathys and Superlative Chronometer logos by Lincoln Wolf, a local craftsman here on Kauai
  • 2 year warranty from a US-based company
  • Swiss Made

Owner's Photos