Worn & Wound
Sherpa Introduces the New Atoll and Tuxedo Versions of the Ultradive
Sherpa has announced a pair of new Ultradive references, expanding their core dive watch line. Sherpa launched in 2021 with a relatively narrow focus, which is honestly something I appreciate in a time period where too many watch brands want to be all things to all people. They make extremely specific dive watches, with compressor cases, and infuse each watch with principles of Buddhism literally built into the movement (the brand’s founder, Martin Klocke, is a practicing Buddhist). The new Ultradive watches, the Tuxedo and the Atoll, bring some variety to the collection without changing things up too dramatically. Before getting into the specifics of each watch, it’s important to step back a bit and familiarize ourselves with the compressor case concept. It’s a technology that has been nearly lost to time as manufacturing has improved across the board and creating highly water resistant watches has, in general, become easier. But it’s an important part of dive watch history and watchmaking history in general. These cases, originally developed by Ervin Piquerez SA (otherwise known as EPSA), essentially employed a specially designed caseback that would seal under light pressure when not submerged in water, but under increasing pressure, the seal would become tighter and tighter. These cases rather ingeniously used the force of the water pressure against the case to its own benefit. Over the years, several versions of this EPSA case were developed, and Sherpa has a...
