Has it been knocked? Magnetised? Either way a service should sort it ;)
Can anyone help please, my sons Seiko 5 sport diver, model SNE13J1, calibre 7s36 has suddenly started to gain time, i'm talking 2 hours over a 24 hour period. Has anyone experienced this before or any suggestions on the cause and remedy.
Has it been knocked? Magnetised? Either way a service should sort it ;)
Does he use a laptop? Apparently some designs have speakers in such a position as to magnetise watches ;)
Most watchmakers will have a demagnetiser and it can be done without taking the watch apart so potentially a quick and cheap repair.
If it remains fast after that procedure then a service is the option...
does it have a display back? if so look carefully at the hairspring to see if it's tangled. if it is a sharp tap into the centre of the palm usually loosens it up - not too hard though! it's a known issue with this movement. i take no responsibility for resultant damage if you try it though!
Last edited by ktmog6uk; 21st March 2013 at 22:08.
ktmog6uk
marchingontogether!
My sumo started gaining time rapidly and as mentioned above a firm tap on the palm sorted it out a treat. Worth a try!