**** WRUW, Tuesday, July 30th, 2019? ****

[wschofield3]

Back to the watch I've purchased three times ....



If you've never owned a Ball watch, check one out, they are built like a tank.

[Strela167]

[tribe125]

There’s some good watches today, but that’s caught my eye more than anything.

[Seriously]

Good morning IWL - Speedbird III thing with PRS1 dial

[Pip]

Morning all,
Bidynator today.




Sent from my iPhone using Tapatalk

[Seriously]

Bidynator

Where does that name originate from ? Do you know Pip ?
Is it something related to the movement?

It sounds like something you’d find in an american bathroom

[Henry Krinkle]

Where does that name originate from ? Do you know Pip ?
Is it something related to the movement?

It sounds like something you’d find in an american bathroom

I am not sure what the name means but it is a Felsa movement. It was a very early automatic movement, maybe mid WW II, and distinct enough that if I recall correctly it had it's own patent.

[Pip]

Where does that name originate from ? Do you know Pip ?
Is it something related to the movement?

It sounds like something you’d find in an american bathroom

From watch-wiki.net - although it'll probably feature soon in @tribe125 great thread, Five Things. Mine is a Felsa 690. I had to purchase a Bidynator for my watchmaking school first year classes, and as luck would have it I got a pretty decent one for a good price. My watchmaker tutor always claimed that a good Bidynator ranked up there with an early Rolex in terms of quality. I have my doubts as to that claim, but it is certainly a good movement.

Bidynator was a brand name for a series of automatic watch movements produced by Felsa from 1942 through the 1960's. It was the first successful movement with bi-directional winding.
Felsa became an innovator in the 1930s with designer Friedrich Meyer, who patented an automatic winding mechanism in 1942. A bi-directional winding mechanism was patented in 1947 by Meyer. Because of Felsa's successful bi-directional automatic winding system, they were allowed to specialize in automatic movements by the cartel of Swiss movement makers, Ebauches SA, along with ETA and A. Schild.
Felsa introduced their first automatic movement with bi-directional winding in 1942. Cal. 410, and the associated ladies model, Cal. 380, were revolutionary but World War II interrupted production and development. Cal. 410 was only produced for a short while before the more-refined Cal. 690 was introduced in 1947 to replace it. These movements were very similar, with many interchangeable parts, but the new series had a longer power reserve (43 rather than 32 hours) and were produced in much greater volume.

[Seriously]

From watch-wiki.net - although it'll probably feature soon in @tribe125 great thread, Five Things. Mine is a Felsa 690. I had to purchase a Bidynator for my watchmaking school first year classes, and as luck would have it I got a pretty decent one for a good price. My watchmaker tutor always claimed that a good Bidynator ranked up there with an early Rolex in terms of quality. I have my doubts as to that claim, but it is certainly a good movement.

Bidynator was a brand name for a series of automatic watch movements produced by Felsa from 1942 through the 1960's. It was the first successful movement with bi-directional winding.
Felsa became an innovator in the 1930s with designer Friedrich Meyer, who patented an automatic winding mechanism in 1942. A bi-directional winding mechanism was patented in 1947 by Meyer. Because of Felsa's successful bi-directional automatic winding system, they were allowed to specialize in automatic movements by the cartel of Swiss movement makers, Ebauches SA, along with ETA and A. Schild.
Felsa introduced their first automatic movement with bi-directional winding in 1942. Cal. 410, and the associated ladies model, Cal. 380, were revolutionary but World War II interrupted production and development. Cal. 410 was only produced for a short while before the more-refined Cal. 690 was introduced in 1947 to replace it. These movements were very similar, with many interchangeable parts, but the new series had a longer power reserve (43 rather than 32 hours) and were produced in much greater volume.

Nice - thanks
Makes perfect sense as soon as you here the bi-direction thing - I couldn't grasp why until then.

[yokied]

Details...

Dan's first and biggest home run.

Unfortunately plumbing is in my immediate future. Tool watch. I corrected the date when I noticed it...

Very nice shot.