SIGMA Guitars was apparently established in 1970 in Japan when Martin decided to offer lower priced guitars but likely wanted to keep the Martin brand separate.
It is hard to know who made guitars for them as it has been shrouded in secrecy.
Some were definitely made by Tokai, but is not super clear which years and which models.
Hopefully this thread will begin to unwind that as time goes by.
Sigma production in Japan seems to have ended in 1983.
It is hard to know who made guitars for them as it has been shrouded in secrecy.
Some were definitely made by Tokai, but is not super clear which years and which models.
Hopefully this thread will begin to unwind that as time goes by.
Sigma production in Japan seems to have ended in 1983.
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