When a 4R36 needs more than regulation
A large timing error may be regulation, but low amplitude, contamination, impact damage or wear can create similar symptoms. We diagnose the movement rather than selling an adjustment as a cure-all.
Common 4R36 repair requests
Watch stopped, poor reserve, large daily gain/loss, winding feels wrong, rotor/winding behavior is abnormal, day/date trouble, crown or stem damage and routine movement service.
Manual winding matters
Unlike the older 7S26 family, the 4R36 is designed for manual winding at the crown. A customer reporting that a 4R36 cannot be wound manually is therefore useful diagnostic information.
A common movement with well-understood service needs
The 4R36 is common and well understood. The reference and symptoms help us prepare for the watch, and the final service recommendation comes after inspection.