How to recognize an original (hesalite) glass from a later (after service) one
By: mstanga : August 22nd, 2015-05:51
We are talking about Omega crystal (hesalite glass) used in (end of 50s) 60s and 70s on the Speedmaster (2915, 2998, 105.003, 105.012, 145.012, 145.022 etc) and the Seamaster 300 (2913, 14755, 165.014, 165.024, 166.024 etc) the 60s and 70s. To distinguish...