
2526j(right)& 3428r(left)

These two have enamel dials, but the thickness of the case is slightly different due to the difference in automatic movements. 2526 is 12-600, 3428 is a little thinner later 27-460

There may be exceptions, but it is said that there is no dimple type index for 3428

The model in the middle is a 2526j bracelet type, and the dimples stand out.

There is a theory that this naming took into consideration the high temperature and strong sunlight of South America, but is the name ”tropical" really appropriate?
Recently, I’m starting to feel uncomfortable with this name.