dr.kol
11333
I have never thoght about pairs as such
but in the Patek world still have a couple:
3738 & 5738
3700 & 3700
5960A & 5960P
5711 & 5980
3712 & 5712
5450 & 5550
5110P & 5110G
5110J & 5110R
5196P & 5134P...
A second thought: perhaps I have all the time been thinking in pairs. But still there are several watches without a sibling. Need to think about that.
Best, Kari