Audemars Piguet Royal Oak to the semi-circular Jean d'Eve, while automotive-themed watches from the cylindrical Parmigiani Fleurier watch for Bugatti to the TAG Heuer Monaco V4, Hublot (for Ferrari) and Jacob & Co (for Bugatti) contain calibres that resemble car engines, requiring cases to reflect this.As with the chicken or the egg, it is impossible to generalise about form following function or - in the most extreme instances - vice versa.
Many Greubel Forsey watches contain complications that extend beyond the movement, so the cases feature 'bulges' to contain them.
Linde Werdelin, which specialises in robust tool watches, created its own out-sized case for its pieces that combine round dials with angular edges.
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