Hello,

The manual found on this site relates to SEIKO D138-5040, while the watch I own is D138-5030. So there must be minor differences between the two models ?
On my 5030, I cannot set the month in the calendar, and I cannot set the 24 hours time indication, it remains locked on AM/PM setting, which I do not like.
Does anyone can help, please ? Thanks a lot in advance.

YAYA