mstanga
224
How to recognize an original (hesalite) glass from a later (after service) one
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 a crystal
from current furniture from one originally supplied with the watch it is
important to pay attention to the shape of the symbol omega "?" which
must have the “feet” not curled upwards. Some photos will surely be of help to
clarify the differences.
Ciao
Marco
This message has been edited by mstanga on 2015-08-22 06:02:39

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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...
Another tip...
By: Adriano : December 28th, 2015-10:34
... to have an idea if a hesalite crystal was already replaced or not even on modern models is to check if the logo is standing up (when the watch is looked straight in your face). This is not an exact science, of course, but crystals are assembled on the...
Great!!!
By: nilomis : December 29th, 2015-02:49
Team, Allow me to introduce "Adenoma" / Adriano. Adriano is a dear friend and I'm happy and honored to have him here. Adriano works on the watchmaking business here and his encyclopedic horological knowledge will enhance our site tremendously. Welcome Adr...
Nilo is exagerating...
By: Adriano : December 29th, 2015-11:17
.. but I try to do my best! I purposelly didn't introduced myself, didn't want to disturb any discussions. Hope I can contribute with the knowledge aquired over the years on both "sides of the desk". Many thanks for the welcome, Nilo! Cheers, Adriano (jus...