Nivada Grenchen Depthomatic Oranus

Nivada Grenchen Depthomatic OranusA complication is anything that your watch does other than tell you the time. Sounds simple enough, right? A date window is a complication; a chronograph is a complication; a moon phase is a complication. These are all relatively commonplace, of course even the highly, ahem, complicated perpetual calendar mechanism is well known to collectors. But what about an analog depth gauge one that indicates the depth in meters or feet without the use of