Speedmaster Question

R Roughneck6

I purchased a new Speedmaster Pro Moon Watch. It is outstanding and so far I have not worn my Seamaster since I placed this on my wrist. My question for those who know concerns the second hand. I like to keep it moving all day, thus activating the stop chronograph. Does this hurt the watch, cause long term damage or make the watch loose time during the day?
I am not sure why but I like seeing the sweeping motion of the second hand. Thanks in advance of any information.

R Roughneck6

I purchased a new Speedmaster Pro Moon Watch. It is outstanding and so far I have not worn my Seamaster since I placed this on my wrist.

U ulackfocus

I owned a Seamaster 145.006 321 chronograph - the same movement as the Speedmaster you have.

First, the timekeeping was different when running the chronograph continuously. I noticed it was slower by a few seconds a day.

Second, don't run it all the time. You could prematurely wear the coupling mechanism or teeth on the gears or some other parts. My watchmaker told me once but I forget which are most at risk. As mentioned by Ashley, if you keep up on the maintenance chances will be exponentially less of anything bad happening.

So, where are the pics? If you want to dance, you gotta pay the band!