1.8mm only fit onto uncle seiko endlinks. You can also use 1.5 on them to give the bracelet a little more articulation, but (as I'm now discovering) it results in the lugs getting grinded down as in the photo. As I've said in earlier posts, I had no luck at all even with 1.5mm on the stock Ed White endlinks, which is why I was wondering how yours was coming along.
I still wear mine with the ed white bracelet & US end links. From time to time I switch it to the stock Forstner flat link for a vintage feel. Since my watch case has already been damaged by the after market bracelets it's basically a moot point for me to continue to have them on. You'll be safe with any bracelet choice but I've tried many, many times to fit the OEM Ed White endlinks like OP did and it just was not going to happen for me, so I've abandoned that notion.
UPDATE: Decided to follow up with my OB, and it ends up that they got my bracelet in months ago, so I took the plunge.
It took a lot of effort, but I was able to get 1.5mm springbars to fit the Seamaster Trilogy! In particular, the end link on the six o'clock side had a very hard time, and I had to push it up toward the hole quite a bit. @Pinmeuphere -- not sure if your experience was similar, but guessing it might have bben.
Will be returning both the US and the Forstner bracelets unopened.
On this bracelet, a warning for the those whose hands are large relative to their wrist size
the clasp itself isn’t very long, which means that when open the bracelet aperture has expanded only 3x that clasp’s short length, which isn’t a whole lot. I have decently large hands (relative to my 7 3/4+ wrists), and so it requires a bit of a tuck and squeeze to get the open bracelet over the widest part of the hand.
if my hand-to-wrist ratio were just a bit more weighted toward the hand size, I’d probably have a hard time using this bracelet.
So, if you have smaller wrists (needing the bracelet sized down to fit) compared to your larger hand size, you might consider this slight fitment oddity of the NEW321 bracelet.
The same is true of the Apollo 11th 50th Anniversary bracelet clasp. I have to flip the watch onto my palm side to put it on, it's a tight fit.
Yes, I had the same issue with the A11 50th along with the new EW321. In normal use everything is fine but if I go outside in the warm weather it can be a tight fit to get the watch off. Ran into this in a watch store in the Carribean, after walking around in the heat and humidity I had a difficult time getting the watch off over my hand.
