https://www.birthyearwatches.com/product/1966-glashutte-spezimatic-with-blue-dial/
SOLD 1966 Glashutte Spezimatic with blue dial - Birth Year Watches
Sep 25, 2019 - In what is sometimes called a Bison case, this Glashutte Spezimatic vintage men's watch is a little special due the rare blue dial.
blue dialbirth yearsoldglashuttewatches