Apparently it is from 3MF (3M Factory). So far so good. There was an issue in the first few days where the watch stopped working and I sent it off to Marrickville in Sydney to get fixed; but I think the fault was of my own doing.
The chronometer works well but I realised if I over use the chronometer it drains the power and I need to manually wind it or else certain functions won't work. For example, the date of the month wouldn't change or the day of the week won't roll over. I just bear in mind if I leave the chronometer running for an extended period I manually wind the watch to compensate afterwards.
The watch only loses a couple of minutes a week at most.