Moonphase Complications: The Math Behind a 29.5-Day Cycle
Mechanical moonphase displays are one of watchmaking’s oldest astronomical complications, yet moonphase complication accuracy is rarely explained in terms that let a buyer make a...
Technical specifications, testing methodologies, and objective analysis for informed watch enthusiasts.
Technical knowledge for serious watch enthusiasts
Mechanical moonphase displays are one of watchmaking’s oldest astronomical complications, yet moonphase complication accuracy is rarely explained in terms that let a buyer make a...
A perpetual calendar mechanism is one of horology’s more satisfying engineering achievements: a physical system that encodes the entire Gregorian month structure, including leap years,...
The co-axial vs Swiss lever escapement debate is often framed as a marketing story, but the engineering behind it comes down to a specific and...