Well this Christmas I got an Omega adjustable clasp with divers extension and finally got around to upgrading my Seamaster PO chrono 2210.51
I had a couple of issues however.
When I got the parts in one of the end clasps came with the wrong pin. It was quite strange bc it was significantly larger in length and diameter to the other pins that I ordered. You can see it in the pics below.
So as a temporary fix, I got one of the split pins from an extra pins set and I cut it to size and filed down the end to smoothen up the face and the edges. You can see an uncut pin and cut pin in one of the images.
The fix seemed to work for for now but have inquired about this error to the seller of the parts.
the other issue I had was what to do about the collars found in the center links of the bracelet. So I just took them out completely because it seemed I had to hammer the pin in quite forcefully if I wanted it to go through.. was leaving it out the right decision?
As far as the clasp itself.
It is very aesthetic. It feels like it was made for the watch especially with the chamfers. It feels like the clasp balances the watch both in terms of looks and weight on the wrist.
As for its functionality, it is just top notch. Its very comfortable and its extension ability is very well made and quite useful. I highly recommend as a upgrade for the older model planet oceans.
Edit:
Here is the list of parts used for this mod.
1x 117STZ001159 ADJUSTABLE Steel Clasp C/W Diver Ext
2x 118st1590 GENUINE Omega Seamaster 20mm 1590 Steel Clasp Link
4x
124st3307 Genuine Omega Link Screw
2x
124st0243 GENUINE 16mm Omega Link Pin to fit 20mm Modern Bracelet Links