Dr No[Moderator Omega - Wristscan]
37613
The Senator Chronometer is equipped with . . .
. . . a day - night indicator . . .
[aperture filled with black disc indicating PM]
. . . which, in my humble opinion, complements the date function, Nico. G O has created a chronometer that's definitive for 24 hours rather than 12.
Btw, there is now another choice for a manual wind . . .
[Dornblüth Quintus image courtesy R G]
. . . that obviates the calendar function critique. And, it's available in steel . . .