Seth Thomas key size

[devron]

so I was looking on Craigslist list and I found someone will to give away a free seth Thomas metronome but the only thing is there is no key to wind it.  There are keys available online as well I universal ones but I am not sure if they are to wide to fit I haven't taken a look at the metronome yet, just wondering if anyone here has any knowledge on the subject that can provide me with the key # or another alternative to wind it.

[devron]

Order a generic set of clock keys for anyone that cares I'll let you know if any of them fit so that I may rewind it, I only was able to use the metronome for a hour or so then it was no more but it is memorizing how different they are compared to come thing electronic. Watching the pendulum sway back and forth is the coolest thing ever, makes it more fun.