Eterna Matic Serial Numbers
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Rare Original Eterna matic centenaire 61 in solid 18k gold case. Running great and keeping time Has the odd mark here and there as per pics but I have not polished it or interfered with it in anyway. Comes on Quality Rios echt Strauss Brown Leather Strap. Movement in great shape is 21 rubies Eterna cal 1428U Happy to answer any questions Starting at only 499 these sell elsewhere on the net pre owned for over 1000 Please see my 100% feedback and bid with utmost confidence I'll pay postage so its fully insured by special delivery If outside the UK please contact me prior to bidding Thanks for looking and good luck.
Eterna began using the ball-bearing auto in the late 40s. Eternamatic was the in-house automatic movement for eterna.
Feb 22, 2019 one thing to note: if serial numbers corroborate to production, and i'm not sure why they wouldn't, then the number is watches eterna produced is a fraction of the likes of omega and rolex. Eterna Matic 1000, gold dial and gold plate. Gotta love the Birks co-logo! Copy link to this post; Waltesefalcon, dougiedude, pitpro and 1.
If you review ETA movements vs. Eterna movements, you begin to see that any technological improvement eterna created would find its way into an ETA movement several years later. I'm not sure if this was because the patents expired or if some sort of licensing was involved. I think it was only until the late 70s or early 80s that eterna used some modified ETAs. When the porsche family purchased the company, they continued producing their own movements as well as using a modified ETA ebauche for a few of their models. Eterna began using the ball-bearing auto in the late 40s. Eternamatic was the in-house automatic movement for eterna.
If you review ETA movements vs. Eterna movements, you begin to see that any technological improvement eterna created would find its way into an ETA movement several years later. I'm not sure if this was because the patents expired or if some sort of licensing was involved. I think it was only until the late 70s or early 80s that eterna used some modified ETAs.
When the porsche family purchased the company, they continued producing their own movements as well as using a modified ETA ebauche for a few of their models. Jon is correct, ETA was spun off of eterna in the 30s. One thing that have not been able to discover, however, is exactly how the companies interacted after the split. I have read that, although swiss law required them to be seperate, they still shared a building and were seperated in legal name and function only. It seems that eterna developed the technology, used it in their movements, and then ETA got it a bit later.