HOW EXCITING!

Completely unexpectedly I got given a £50 Amazon voucher at work yesterday.

What should I buy???

So far tempted by...

G-Shock G7900 (but then I have owned the red one before and flipped it)

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Seiko SNK805 (but already have the 809)
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Hirsch Pure rubber strap for my Seamaster (but it's just a strap)
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Swatch Sir Red
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...or Sir Blue
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Or something else - as long as it's not too big (ideally <40mm) and is available for <£50 on Amazon UK

Cheers, ladles and jellyspoons