The Seiko 6139B deconstructed | Adventures in Amateur Watch Fettling
In case of an abnormal movement
Seiko SSC017 chronograph minute counter does not move until 2min have passed and chronograph stops after 62min; Reset button not working; What to expect upon opening? : r/watchrepair
In case of an abnormal movement
How To Recalibrate (Realign) the hands of ANY Chronograph Quartz Watch? (Back to 0) - YouTube
In case of an abnormal movement
Seiko 7T92 - seconds hand not moving : r/watchrepair
What is a Chronograph Watch is Just That Simple | Strapcode
How to fix misaligned Seiko quartz chronograph hands –– Mizeni
Setting the stopwatch hands (1/5-second and minute hands) to the preliminary position