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Discussion Starter #1 (Edited)
So I have a Seiko 5 that the day complication is not working, though the time and date function are still working. I tried opening the watch and seeing if it was a minor fix (my first time) but it seems to still not work. I will list my options I have consider and some negatives to each approach. Let me know what you all think and what do you think is the best option. The movement is the 7s26c.
A) Buy a new 7s26C movement (average price I have seen is $70-90) and install it myself. One issue I have is this is the price of just buying a cheap Seiko 5 and taking the movement out and placing it in my watch (which just seems like better value because I still have a shell to do what I want with later). There appears to be some A and B models available for slightly cheaper prices but will they have less accuracy or be way off by minutes a day? A movement is improved on for a reason. B) Buy the non Seiko branded NH36 movement (I do not know if they make a 7s26 equivalent non Seiko branded movement) which actually goes for less money, about $35-40 on average and is a better movement. I just do not know if I would need to replace the crown (like in the SKX mod videos) which I would not know anything about as far as selecting a crown (it is more of a dress watch model). Also, a part of me likes the idea of the movement being seen thru the caseback to be Seiko branded because this watch is going to my son as his first automatic watch (he is just 7 months now). He has a twin (his brother) and I have a Seiko 5 that is very similar and that will be his first watch, so I cannot have one of their watches not working properly for them. :) But I guess the part of being genuine Seiko parts is not a huge huge deal if it means I fix the watch for cheap. C) Bring the watch to my local watch guy and have him see what is up and if it can be fixed without additional parts. I am afraid though (I could be wrong) that for him to get deep into the watch, he would charge me and if nothing can be done, it would be like a waste of 5 or 10 bucks just to find out nothing can be done with out additional parts. Money that could have gone to the new movement. So what do you all suggest? I could just go and find out if my local watch guy would not charge me to look under the hood. I know for me, I could only get so far as to take the movement out of the watch and remove the day wheel. Beyond that is when things get complicated for me (and I did not have the right tools). So I would suspect fully taking the movement apart would get me charged. Let me know guys. What would you do?

Thanks a lot.
 

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I'd buy a NH36, put the old rotor on (even though it says 7S26) and pay the watchmaker to put the crown on the new stem that comes with the new movement.
 

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If you think that by opening the back of the watch you will see why the day wheel is not working then it shows that you don't understand that the dial and hands have to be removed to even see any of the day/date mech. With this in mind I suspect that a movement replacement is a bit ambitious on your part........
 

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So I have a Seiko 5 that the day complication is not working, though the time and date function are still working. I tried opening the watch and seeing if it was a minor fix (my first time) but it seems to still not work. I will list my options I have consider and some negatives to each approach. Let me know what you all think and what do you think is the best option. The movement is the 7s26c.
A) Buy a new 7s26C movement (average price I have seen is $70-90) and install it myself. One issue I have is this is the price of just buying a cheap Seiko 5 and taking the movement out and placing it in my watch (which just seems like better value because I still have a shell to do what I want with later). There appears to be some A and B models available for slightly cheaper prices but will they have less accuracy or be way off by minutes a day? A movement is improved on for a reason. B) Buy the non Seiko branded NH36 movement (I do not know if they make a 7s26 equivalent non Seiko branded movement) which actually goes for less money, about $35-40 on average and is a better movement. I just do not know if I would need to replace the crown (like in the SKX mod videos) which I would not know anything about as far as selecting a crown (it is more of a dress watch model). Also, a part of me likes the idea of the movement being seen thru the caseback to be Seiko branded because this watch is going to my son as his first automatic watch (he is just 7 months now). He has a twin (his brother) and I have a Seiko 5 that is very similar and that will be his first watch, so I cannot have one of their watches not working properly for them. :) But I guess the part of being genuine Seiko parts is not a huge huge deal if it means I fix the watch for cheap. C) Bring the watch to my local watch guy and have him see what is up and if it can be fixed without additional parts. I am afraid though (I could be wrong) that for him to get deep into the watch, he would charge me and if nothing can be done, it would be like a waste of 5 or 10 bucks just to find out nothing can be done with out additional parts. Money that could have gone to the new movement. So what do you all suggest? I could just go and find out if my local watch guy would not charge me to look under the hood. I know for me, I could only get so far as to take the movement out of the watch and remove the day wheel. Beyond that is when things get complicated for me (and I did not have the right tools). So I would suspect fully taking the movement apart would get me charged. Let me know guys. What would you do?
The only difference between the 7s26C and the NH36 is the name. Both are produced by Seiko and are virtually identical.

My own personal preference would be to find a good 7s26A because that was a more robust movement than any of the later versions(including the NH35.
When properly serviced, the 7s26A can be just as good a time keeper as a new NH36.
 

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Ermmm... 7s26 = NH26. 4R36=NH36.
 

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As no-one has mentioned it, can we presume that you've run the hands forwards through 48 hours to check the mechanism isn't stuck because of night time adjustment ???
 
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