Hi Guys I’m new to this forum coming from the UK. For reference I have encountered the exact same problem with the exact same model. I’ve had it for around 7 years (never dropped or damaged) in which time the battery has been changed twice, recently it stopped so I thought the battery needed to been changed again however once changed the watch movement doesn’t work but strangely enough the chronograph does. I’m unsure if this was an issue before battery replacement as I just assumed it was dead.
Did the OP sort the problem or could anyone shed some light on it?