Date wheel prematurely moving

[mr.president1]

Hi all - I recently acquired this from a trusted seller here from the Forums. Love love love this watch. Interesting development that has be annoyed. The date begins to start changing at 11pm and quite literally is in between dates between 11:30-midnight. Is this normal? I feel like it’s not. Would it be an easy fix if so?

Thanks for your insight!


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[AEC]

Love the all-orange PO!

I believe that's a c.8500 model, isn't it? My Aqua Terra with c.8500 exhibits the same behavior, and I believe it's common to this caliber. I'm sure most watch enthusiasts aren't happy about it, but I believe it's a trait of this caliber.

[AEC]

I checked my Aqua Terra at 11:30 last night, and the date display was already on the move, in a position similar to that shown in the photo of your Planet Ocean.

I thought I recalled seeing something about this in the FAQ info that Omega lists under its Customer Service section of its web site, so I checked there this morning and found this:

When does the date of most OMEGA watches change?

OMEGA uses the slow and the quick date-change systems:
Slow date-change on calibres 1128, 1150-1-2, 1164, 1270, 1379, 1400, 1424, 1426, 1429, 1430, 1432, 1438, 1441, 1449, 1479, 1530, 1532, 1538, 1675, 1866, 2520, 2600, 2628, 3603, 3606.
OMEGA uses the slow date-change system so that the date-change is clearly visible around midnight and that there is no confusion as to the moment of the date-change. The date of the ending day can be seen in full until 11.30 pm. At midnight, the date of the ending day is still entirely visible at the bottom of the date window, with the new date appearing at the top of the window. Then, the new date moves down through the window and the previous day’s date gradually disappears. This operation is completed between 1 and 3 am.
Avoid changing the date manually between 8 pm and 2 am, since this is the period during which the automatic date-change is in operation.
Quick date-change on calibres 1120, 2300, 2500, 2601, 2610, 2627, 3221, 3301-3, 3304, 3320, 3313, 3330, 3612, 3888, 3890, 8500, 8501, 8520, 8521, 8601, 8611
OMEGA uses the quick date-change system, which starts to change the date at about 11.30 pm and comes to its end at 00.10 am. The date of the ending day can be seen in full until 11.50 pm. Between a period of 10 minutes before and after midnight, the calendar jumps and lets appear the date of the next day.
Avoid changing the date manually between 08 pm and 2 am, since this is the period during which the automatic date-change is in operation.

[jason042779]

Good to know. Always wondered what the deal was on my SMP300 with 1120. Now I know it's supposed to do that. Still get that satisfying quick date change at the end though!

[Jack T]

Interesting, my Planet Ocean 2500 is in the same category, although, after all these years, I don’t recall being up at that time and monitoring the date change. Maybe I need to party more.
Nevertheless, great watch, glad this is clarified for the OP.

[AEC]

Originally Posted by Jack T

Interesting, my Planet Ocean 2500 is in the same category, although, after all these years, I don’t recall being up at that time and monitoring the date change. Maybe I need to party more.
Nevertheless, great watch, glad this is clarified for the OP.

Yeah, I had an Aqua Terra with caliber 2500, and I don't recall that the date display began its move early in that watch.

Let me know ahead of time when you're gonna stay up and party because I need to be sure and have a nap