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My new watch timing machine setup. I ditched the bulky laptop (well it ditched me as it just stopped turning on lol) Running Graham Baxters escapement analyser software on a windows 10 tablet. The tablet didn't have a sound input socket so I thought I would try a cheap USB sound card (about £4) and connected the microphone which was a Greiner model modified by Graham and it all works like a treat. The great thing about these vintage microphones as compaired to the modern timegrapher models is that you can get a full 360 degree turn. Sent from my iPhone using Tapatalk

My current collection of watch repair tools. All tools have a special purpose and there are only a few duplicates, where I found a more professional tool. You basically need all these tools to repair watches. Did not include and oils or cleaning solutions. Did not include my ultrasonic cleaner or and timing tools (I use both PC and Tab Software). Did not include my Drummel tool used for case polishing . Sent from my iPhone using Tapatalk Pro

Some of the older precisions said Swiss made or just Swiss. The movement pic will be the key, most on here will be able to verify it via a movement pic. Sent from my iPhone using Tapatalk

That is true, if you don't try you don't learn. I've still got a long way to go, but I know I'm better than I was at the start of the year

Looks like a incabloc duofix or seiko diafix . http://great-british-watch.co.uk/watch-anti-shock-settings/

Found this on another forum which might help:There is actually quit a bit on the net about the Pierce including a vid (not your calibre) http://forums.watchuseek.com/f11/pierce-chronographs-401881.html

My only understanding of Pierce chronographs is from your walkrhroughs

No. It's not. That's why I asked if he had removed the train bridge. He answered that he had and so it is not the taper pin style otherwise the bridge would not have come away. Sent from my iPhone using Tapatalk

That is a jacot tool and you are lucky as it has the bow. It is for polishing pivots. Here is a link that shows how to set it up and use it.