Tudor Pelagos MT5612 date quickset "danger zone"

[ISSATS]

I know that some watch movements with date complication (at least ETA) have so called "danger zone" for quicksetting the date. At the moment I have only one piece with date and it is the in-house Pelagos with MT5612 movement. One day I realised that I haven't given a thought whether or not MT5612 even have a "danger zone" and suddenly I would really much like to educate myself in that matter.
I searched some common forums and checked the manual but no concrete information found whether or not this exact movement could be quickset at anytime or only during specific time period. It seems that any info I was able to find was more or less a matter of opinion rather than based on facts.

Has anyone else given this a thought or found any fact based information?

[subtona]

only more opinion, I would say that most modern movements especially from Rolex/tudor have worked out the kinks on the issue. however I would agree that it is nice to read it in print from the manufacturer.



I know the modern Patek microrotor movement (240) used on perpetual calendars has very particular date setting instructions to avert disaster but that movement has been in service for a couple of decades

[Tricolore66]

Some of the Grand Seiko movements, including the Spring Drive, have specific instructions regarding setting the date.

[ISSATS]

That is where I get confused. In the manual there is also instructions how to set date on Tudor Fastrider watch using setting tool and that part specifically mentions that "To avoid damaging the movement, it is vital not to adjust the date between 20:30 and 23:00."

However in the part with instructions related date setting on Tudor watches using crown, there is no mentioning about any time window which needs to be avoided. Based on that I'm assuming it is safe to quickset whenever but obviously would be nice to know for sure.

[Cory_Logic]

I’ve always just avoided between 9-3 usually if I set the date I will do it at 0600hrs so it’s out of the “danger” zone.


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[Reeser]

Excuse my naivety but can someone explain the this “Date danger zone” to me please I would be very grateful. Thanks in advance

[subtona]

Originally Posted by Reeser

Excuse my naivety but can someone explain the this “Date danger zone” to me please I would be very grateful. Thanks in advance

setting the date when the gears are in the process of switching the date can foul certain movements

[kieselguhr]

The reason some watches have dates that should not be changed between certain hours, typically between 2100 and 0300 is because the date change mechanism used in the respective movements utilize a small prong on a wheel which grabs the date wheel and pulls it forward to the next date. This process happens over a few hours as opposed to an immediate change like Rolex and Tudor in house movements.

The Tudor MT5612 in the Pelagos (and all other in house movements) are based of the Tudor MT5621 architecture which is Tudor’s first fully developed in house movement used in the North Flag. Like Rolex, the Tudor in house movements use a cam that preloads the spring and eventually propels the post that moves the date forward.

TL:DR, For Tudor in house movements, you can change the date at any time just like Rolex movements.

For their watches using Sellita and ETA movements, use your own discretion.