Help determining sweep second hand length

[johnno]

Okay guys, need some help here. I have a Speedy pro ref 3590 (cal.861) that has a straight chrono sweep hand on it when it should be an arrow head. Offrei has three on offer and it’s only served to confuse me. Offrei has three different sizes on offer. So I am left to ponder what is the correct sweep hand length for this model?

Mine looks like this

when it should be this:

The sizes on offer are:
Han-2210 14.75mm

Han-1425 14.24mm

Han-4116

My confusion comes from thinking that the dial sizes of the 321 and the 861 were the same size – this must be a wrong assumption. Either way can anyone help determining the correct size without pulling the dial from the case at this stage?

Cheers

[johnno]

Got anm answer. So as to assist anyone else who may have this issue in the future the correct length is 14.75mm – still unsure why the different lengths available though.

[Author]

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