Many watches have see-through case-back viewers. These crystal “windows” let you peek into the heart of the watch: its movement. Hydroscaphs also sport this really cool feature, but – as you’d expect – we did things a little bit different.

Our watches are designed and rated for great pressure at depth, so it wouldn’t have been wise to compromise their toughness with with a standard porthole. And since we don’t craft anything “standard” on the Hydroscaph, we gave it smaller super thick dual porthole viewers.

Deep sea diving machines must resist intense pressures when diving, so  their hull windows tend to be smaller and thicker. The Hydroscaph is no different. Always tough, but always stylish.

What’s your favorite Hydroscaph detail? Show us on Instagram, tell us on Twitter or Facebook, or email it to us at openwater@clercwatches.wpengine.com.