Thanks Cazalea for the insightful comments,

Oct 21, 2017,06:25 AM
 

Having the bracelet off the watch is always preferable before doing such work. However, given that these kind of bracelets like on the GS would require some proper tools to prevent scratching the lugs (e.g double springbar forks), I did it with the watch still on with caution. For the mallet, I always used the Nylon side to ensure no accidental hard knocks of metal-to-metal contact which would be a bad day.
I totally forgot about those screw presses. That would make the job 100x easier and render the article obsolete! Looks like the safest way to do it in my opinion, and it even lets you control how deep you want to push the pins in!.
Degradation and oxidization of the steel pins is also another good point to highlight - I only considered a new bracelet when doing my writeup. Then yes - perhaps an oil/rust penetrant like WD40 would work to loosen the pins first (followed by proper cleanup, which is beyond my knowledge).
Regards,
skyeriding

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How to: Resize a Grand Seiko 5-link Bracelet (SBGA011) - Pin-Collar type

 
 By: skyeriding : October 20th, 2017-14:06
So, you have just acquired your shiny new Grand Seiko on a bracelet. However, it is a few links loose/tight and you'd like to change the number of links (Unfortunately, the non-diver GS bracelets do not have a quick adjust mechanism). How would you do tha...  

Thanks for this spectacularly illustrated procedure for changing bracelet length!

 
 By: cazalea : October 20th, 2017-14:55
You did a great job explaining both the process, and the cautionary approach to avoid damage. And congratulations on the new watch - I love titanium GS watches (but I guess you guys know that). If you don't mind, can I add a couple small points? Overall, ...  

Thanks Cazalea for the insightful comments,

 
 By: skyeriding : October 21st, 2017-06:25
Having the bracelet off the watch is always preferable before doing such work. However, given that these kind of bracelets like on the GS would require some proper tools to prevent scratching the lugs (e.g double springbar forks), I did it with the watch ... 

Another tips...

 
 By: JFT : October 20th, 2017-20:08
Perhaps you could use a wooden mallet to hit back the pin into the bracelet. It's sturdy enough to hit the pins but soft enough to not scratch the bracelet. And uses a thick wrapping paper than a tape instead to prevent any glue sticking into the bracelet...  

Thank you Jev for the comments,

 
 By: skyeriding : October 21st, 2017-06:29
A wooden mallet would work fine too as it would not damage the metal surfaces. Personally, I used the nylon side of the mallet I have as it will also not dent any metal surfaces. In either case however, the mallet would only get the pin in a certain dista... 

 
 By: jensmuhlert : March 27th, 2022-22:47
Great overview, thanks!