A bit of an odd question...

My friend has a TAG Formula One chrono quartz, it's probably a CAZ1010.BA0842 or something similar. Last night I was looking at it and I noticed the left hand chrono isn't resetting to 0, but seems to be sitting at '1' on the sub dial. I'm not sure if it's still under warranty and I didn't want to point it out and annoy him, especially as he hasn't noticed and he tells me he bought a TAG because I'm always going on about them... I very much doubt he's even used the chronograph to be honest...

So my question is, is there an easy fix or is this a job which needs doing properly? I know there is a way to reset the seconds hand on some watches, where you pull out the crown and press both pushers together, but I didn't want to experiment with someone else's watch.

I wish I knew when he bought it, because if it is still under warranty he should perhaps get it back to TAG asap.

Is it anything like this:
https://forums.calibre11.com/thread...nograph-quartz-eta-251-262.22541/#post-683968

Yep, basically the same procedure, here it is:

After a battery change, or if the function should be affected by a severe
knock or exposure to a strong magnetic field, the hands of the chronograph
should be reset at zero (starting point).

Resetting the seconds-hand and the 1/10th-second register:
1. Put the crown to position 3 (this position stops the watch)
2. By means of short, successive pressures on the button, turn the hands
step by step back to zero:
Button A: works the seconds-hand
Button B: works the hand of the 1/10th-second register

Resetting the hours register and minutes register:
1. Put the crown to position 2
2. By means of short, successive pressures on the button, turn the hands
step by step back to zero:
Button A: works the hours register
Button B: works the minutes register

Note: Do not keep the crown in position 2 for more than 20 minutes (loss of
hour).

Remember always to push back the crown and screw it in to
position 0.

Thanks, I will try and give it a go.