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No, you're wrong, it's the opposite. The 11 are the first, the 30 come later.
there are 1171 (11) with embossed logo, which are the first 1171
It's all explained in the book Moonwatch only.
Even the (30) would seem not to be suitable for Speedmaster, but for other references
Then you can check on Moonwatch only, because it is clearly written that (11) are the oldest 😉👍
1171(30) are all probability for Seamaster
1171/633 with circle 32 and stamped square logo. Purchased new from Ofrei for my SM300 project in 2012 or 2013.
l got another question :
anyone know what era a 1171/1 with stamped marking would be? I have mostly seen laser etched.