Before buying a watch RADO SINTRA R13913152 Multifonctions, be aware that this model is obsolete and is not in RADO's catalog anymore and that it apparently has some problems of oxydation. Having two RADO SINTRA watches, the R13913152 Multifunctions is the only one having a repeated problem of water ingress. 2 times in 4 years.

So Beware ...