Not my pic, not my watch, not a 147.
But nought out of three ain't bad
Try this:
Or this:
Changing the strap is a challenge. Not difficult... just a step up from pinging spring-bars across the room.
You will need:
A tray to catch the bits. Make sure that it has a non-bounce surface. Don't say I didn't warn you.
A loupe, or bench -mounted magnifier. Or better eyes than mine.
A screwdriver that really fits. I cheated. I put a scratch on the case. Don't say I didn't warn you.
Nice sharp tweezers. Those screws are small. Really small.
An active sence of humour.
The screws are glued in place. Good practice... you don't want them falling out. But this means that you have to twist quite hard. This is why you need a screwdriver that really fits.
Place the watch in the palm of one hand, use your loupe to check that your screwdriver is perfectly positioned... and twist. The ends of the screws are turned down and fit through tiny holes in the wire lugs, so in theory, it is not necessary to remove them completely.
Sods law, however, states that some will just drop out, some will resolutely refuse to back off sufficiently to clear the tiny holes in the lugs. Your nice sharp tweezers will come in handy at this point. Mine were blunt. They looked sharp, until I saw them through a loupe...
The wire lugs are in two parts. Once free of the screws, they come out of the original strap easily. Two right-angled bits of bent wire, on each side of the watch.
Stop! Do not fit your new strap, yet!
Fiddle around in the strap holes and you will find a short tube, constricted in the middle. This holds the bent coathanger things together. You need to shove it into your new strap before proceeding.
Needless to say, I discovered this tube after I had fitted the new strap... and had to start all over again.
I did say that you will need an active sense of humour...
Getting the little tiny screws lined up with the holes in the wire lugs is a job that requires some patience. Three of mine went in easily. The fourth did not... and is still not quite right.
I'll fix it tomorrow.
Or the day after, perhaps...
OK... I'm hamming it up a bit. Playing to the gallery. Changing the strap does require some concentration... and a measure of sobriety. But - it is worth it!
I love my Jos Nana 147 + banda strap!
Happy timekeeping!
Clive