Screws rather than pins yes, the early/mid version of the 1970s 1171, SELs, no not to my knowledge, at least not the 633 end links, maybe there are some other Els which fit the 1171.
If you are getting a new 1171/633, go to a Boutique or AD and pay more like £380-400. I get tired of telling people to go straight to Omega for bracelets and straps but it seems the message never gets through!
I bought both the 1171/633 and its 19mm brother the 1125/617 for £350 each direct from Omega about 6 months ago, prices have risen but not by that much.
btw I too have a 33X3 movement Auto Speedy, great watch!
Thanks for that info. I have a contact at my local OB but I just thought they would probably be charging more.
As for the watch I do like it, but I don't get on with the supplied bracelet and will look to move it on if a new bracelet can't be found.
I don't personally mind the original 3570 style bracelet but I actually wear mine on either an original Omega leather with deployant or the repro JB Champion:
I am now doing Seiko 6309-7040's, 7a28's (the digital/analouge chronos) and some others. I'm back to wearing my personally modded Seiko Prospex Diver every day now.
The new 1171/1 can indeed be purchased at the ADs for around $400. Many scammers try to sell those as vintage bracelets for $1000.
The 1171/1 is actually quite nice and comfortable on the wrist. But only as long as it does not fall apart on you! Some of the pin-holders are curled metal which can bend and the bracelet falls apart!
Don't know if the original 1171 has a similar problem. Unfortunately never owned an original one.
The current bracelet is the 1171. Read the earlier posts, the bracelet started with screwed links and a trapezoid logo in the 1970s then went over to the 1171/1 version with pins and a different logo after a decade or so, the current version is called 1171 once more but still has pins and laser etched markings. Look at the photo at the top of the page, that is a brand new 1171 bracelet still in vacuum packed plastic.
The original 1171 from the 70's has the trapezoidal box around the Omega symbol on the clasp. The newer 1171/1 has the square box. The 1171 has screws in the removable links and the 1171/1 has the friction pins. The 1171 has either number 11 or 12 on the clasp, while the 1171/1 has number 32. The newest 1171/1 bracelets are now marked as 1171 again just to make things more confusing, but they will still have the number 32 and the square box on the clasp.