Omega

AndrewD
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Omega ‘signed’ lenses

Hi All,

I know this is occasionally discussed but I wanted to get some more information on the logo in the hesalite lenses of vintage Omega watches.

I gather that this feature was introduced in the 1950’s but how long did its use continue? Was it used across the entire Omega range of that period? When did they change to mineral glass or sapphire crystals? (I realise some Speedy Pro’s still came with the signed hesalite, as will the upcoming 40^th Anniversary model). The symbol is on the inner surface, but is it etched or moulded? Do Omega still provide these parts and if not, is a signed hesalite lens a useful indicator of originality? Oh, yes, and I assume that hesalite is exactly the same thing as acrylic?

Any information would be much appreciated.

Regards

Andrew

Ps. If anyone wants to post some gratuitous images of the Omega logo I wouldn’t complain…