Tell her to get the MK if she likes it

no.

Whats the Budget?

Damn, that’s gonna be tough! I hope someone knows the model, though. You’d make your wife very happy Id assume

I’m going to be boring and say it’s the Speedy for sure.

How expensive was the order? Where did it come from?

The best advice regarding this topic I can give from my own experience:
Is she into watches?
No?
Don’t buy anything watch related, then, just because you like it.

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If yes, we definitely need more than that to be of any assistance

It’s a Sinn 6006, Valjoux 7751. probably from the early 90s. Watch has been produced under the Guinand and Sinn label. At some point Sinn started making them again and called the Sinn 6026 PL https://www.sinn.de/de/Archiv/6026.htm What’s the asking price of the seller? Best Regards from Germany