SJX Watches
Krzysztof Płonka Built the Great Astronomical Skeleton Clock From Scratch
A mechanical engineer by trade, Krzysztof Płonka has been making elaborate clocks since the 1990s in his workshop in southern Poland, specialising in regulator-style standing clocks with astronomical complications. One of his most complex creations is the Great Astronomical Skeleton Clock. Requiring a decade to complete – producing the components took six years and assembly a further four years – the clock is unique proposition that combines classical horology with more modern mechanics. Initial thoughts Large standing clocks are a niche of horology far from the mainstream of wristwatch collection. While wrist (and occasionally pocket) watches are well known to enthusiasts, the best clockmakers and their amazing works are mostly neglected. The Great Astronomical Skeleton Clock is a good example of such a hidden horological gem. It’s both curious in construction and comprehensive in terms of complications, a combination that should interest horologists and engineers alike. Built on a precision movement as the base, the clock features a complete perpetual calendar, sunrise and sunset times for a fixed location and even a sun declination indication. The mechanics are presented in a beautiful woodworked cabinet almost 3 m tall, with large glass panels generously showing the inner workings. The clock is stark in its open working, with most of the mechanics within on show from all sides. The movement features both classical horological elements and general mechanical c...
