ETA 2485

strange: indirectly driven minute allows a relatively big balance and low profile The calibres 2480, 2485 and 2482, 2487 respectively are nearly identical, but mirror inverted. An equivalent pair was made as Eterna 1437/1447. As also the dial feet positions were mirrored, it is even impossible to use the same dials for both variants. The reason for these sets of twins are unknown, and for two-hands movements hard to understand.