Tudor MT5602 Movement Precision Discussion

Great Watch Fan · 2024-02-23T12:40:25Z

Tudor FXD MN24 owner Great Watch Fan questions the precision of his COSC-certified MT5602 movement. Explore community insights on break-in periods, positioning, and expected accuracy for Tudor watches.

Great Watch Fan's inquiry into the precision of his new Tudor FXD MN24, powered by the COSC-certified MT5602 movement, sparks a vital discussion for collectors. His experience of +7 seconds per day, exceeding COSC standards, highlights a common concern regarding the real-world performance of new timepieces. This thread explores troubleshooting steps and community expectations for Tudor's in-house calibers.

I recently get my FXD MN24 which has the COSC certification.
After 5 days on my wrist, it runs with + 35 sec (+7 sec per day) which is more than the COSC spec (-4 sec / +6 sec).
What do you think about it?
Do I have to send it back to the manufacture?
Any comment or advice will be appreciate.
Best,
Micka

Key Points from the Discussion

Before seeking service, consider how the watch is positioned when not worn, as different resting positions can influence timing results.
A new watch may require a 'break-in' period of a couple of weeks for the movement to settle, after which its precision might improve.
The 'crown right' position is often found to be the slowest for Rolex and Tudor movements, which can be used to mitigate daily gain.
The author clarifies that his FXD MN24 is a brand new watch, recently acquired from an Authorized Dealer after being on a waiting list.
Other Tudor owners report their watches, including Black Bay S&G and Pelagos LHD, are regulated to run slightly slow, typically -1 to -3 seconds per day.
While +35 seconds over five days is not extreme, a deviation of +7 seconds per day for a COSC-certified movement is outside the specified range of -4 to +6 seconds.

The Discussion

Tavio_George

Feb 23, 2024

How do you place your watch when you take it off? Before you take it in for service, I would change the way you rest the watch at night (assuming you don't sleep with it). Remember the watch is tested in several positions but not all positions yield the same timing results. Best of luck!

ChristianDK

Feb 23, 2024

Personally I would take it back for an adjustment.

TeutonicCarFan

Feb 23, 2024

Not terrible. At first I saw 35 sec and assumed magnetized, but that's over 5 days. Sometimes I wonder since all my watches get shipped to me that the process could introduce magnetizism

chk

Feb 23, 2024

The watch will be more accurate when the mainspring is wound.

Great Watch Fan

Feb 23, 2024

No, I do not sleep with it 😆. When I take it off, I lay it almost flat. The strap lifts it a little bit as you can see on the photo below. Once again thanks and have a Nice day.

ZSHSZ

Feb 23, 2024

I suggest, give it a couple of weeks to break in and if it doesn’t improve take it to Tudor or your AD for a regulation, that movement can do way better than that… Easy fix…

Key Points from the Discussion

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