Powermatic 80.111. What do you think about this caliber?

Jun 06, 2023,16:10 PM

Powermatic 80 are calibers derived from the Eta 2824-2. By reducing the pace to 21600 A/h (and probably something else), Swatch engineers have got to improve the PR to an impressive 80h.

The official name of the PM 80.111 is ETA C07.111. It is used in several Tissot models like the PRX or the recently released Sideral. The escapement (pallet fork and escape wheel) is made of some kind of “plastic”. It has 23 jewels, two less than the Eta 2824-2. These two supposedly are the  ones that would be used if it had a metallic pallet fork.
There are other types of PM 80 like the ETA C07.611 (no plastic parts) or the ETA C07.811 (no plastic parts and silicium hairspring).

PM 80.111. Plastic escapement. No jewels. Source: Inf.news

I was decided to buy a Tissot Sideral but now that I know about the plastic parts, I’m pretty unsure. People says it has a great accuracy but I am not confident about how it will age.
What do you think? What’s your experience?

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Interesting! Do all Powermatic 80 movements have plastic parts?

 By: India Whiskey Charlie : June 6th, 2023-16:45
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Only the ETA C07.111. I explain it in the post 😄😄

 By: aWtchslvr : June 6th, 2023-16:51
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No experience with PM80.111

 By: Weems@8 : June 6th, 2023-17:14
But the post you post is interesting. The big thing, Plastic parts. That is for me shocking! Tissot use plastic. I write this because i know how polluted the earth is with old plastic. The ocean clean up, Breitling’s effort to clean up the oceans. Second....  
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I have the answer!

 By: Weems@8 : June 6th, 2023-18:42
Not that exited as the titel. Retired. I did not threw my Tissot away. The reason is not plastic. The reason is that it was my first automatic watch ever. I found it realistic i start up collecting watches, to start with a affordable watch to explore more... 
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Ok. No more plastic on your wrist. Thanks for the info!

 By: aWtchslvr : June 6th, 2023-18:47
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My whole watch collection

 By: Weems@8 : June 6th, 2023-18:53
Is without plastic. Ok, i kept an old watch. I do not threw it away because it contains tritium. I must bring it away as light nuclear waste. ...  
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 By: Weems@8 : June 9th, 2023-17:42
Radioactivity. There is a lot in watches. Lumination purposes. Tritium. T on a dial is the evidence, Tritium. 12 years half time. As i am note Madam Curie. Kraftwerk’s Radioactivity. Is in the air for you and me. It is no shame you own a G Shock and Garmi... 
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That is tru

 By: Weems@8 : June 9th, 2023-21:00
But Kraftwerk is one of my favorites bands. It is no reason for me to wear German watches. My other favorite bands. Motörhead. Laibach. The Stranglers. Iron Maiden. The Cure. Japan. Talking Heads. Spandau Ballet. Sparks. Rita Mitsuko. Khaled. Steve Miller... 
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Greet list. Many stars there.

 By: aWtchslvr : June 12th, 2023-15:47
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I confess

 By: Weems@8 : June 13th, 2023-20:27
No local amateur band. Call a band who nobody know, ok, than starting a talk is more difficult. Pink Floyd, i guess many know the band. The relation between David Gilmour and Roger Waters is amazing to follow. Who made the best Floyd album? I confess that... 
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I have a Hamilton Pan Europe with the CO7.111. Bought it when that watch came out approximately 12 years ago and it's still going strong. It's still not exhibiting any symptoms which would

 By: InDebtButOnTime : June 6th, 2023-17:18
indicate a need for servicing. Accuracy is still very good as is PR. When I bought it I already had quite a few watches so wrist time has not been huge. I try to rotate pieces or at the very least give them a manual winding every few weeks, doing that wit... 
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Call it a "proprietary composite" and you won't be as concerned..

 By: Spangles - Dr. Tabby : June 6th, 2023-18:47
And this will lead to a more informed take, perhaps. A watchmaker explained this composite is used for better reliability and servicing.
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Well, I would be more relaxed if Tissot gave some info about this material. What kind of plastic it is, hardness, durability... I’ve even read that the

 By: aWtchslvr : June 6th, 2023-20:23
servicing consists in replacing the movement for a whole new one. Also I’ve read that the accuracy is excellent. You must know it well... very nice your blue PRX.
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Wow. we have some very earth environmentally conscious members here!

 By: doubleup : June 6th, 2023-19:18
To answer your question, I would say no. I don't understand how there could be such a cost savings to make those two parts plastic, charge a few bucks more.. Unless they are saying it is some kind of technology that makes it better over the long run but w... 
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Everyone says the accuracy is excellent. Although in general I don’t like a caliber with plastics, legends like some Speedies or the Lemania 5100 (central minute chronograph) had it.

 By: aWtchslvr : June 6th, 2023-20:37
I would be happy with some info from Tissot about what I am buying and the durability and possibilities of servicing of this material.
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Interesting, I did not know that one. While I agree on the fact that plastic lacks of perceived quality, in the end, we can be reassured that plastic components will be easily replaceable when needed (maybe even through 3D printing).

 By: montres1 : June 7th, 2023-07:34
Overall I would still tend to avoid this caliber, I would not look at my watch the same way knowing that it has plastic in it...
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The powermatic 80hrs reserve only release a few years ago unless it a different name back then

 By: iceheller 1945 ✌️ : March 17th, 2024-03:36
If I recalled correctly. The are high resistance plastics like Delrin, Ultem, PEEK and the list goes no. So not a concern to use on watches but the wear and tear will be faster compared to traditional metal and jewell contact from the pictures you can pro... 
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