8 day movement database

Share experiences and specs of different watch movements
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spade_lt
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8 day movement database

Post by spade_lt »

Well, at least the beginnings of it :)

I, like Tan, have a fascination for 8 day movements so the 8 day reference thread on the old HF was one of my favorites.
Let me start a new one here, and I hope that others will add information when they can...
(size format is: overall diameter / thickness (in mm))

Felsa cal. 4100
30.9 / 4.5
Found in Crestwood, Baylor and some other 8 day wristwatches
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A.Michel cal.50
28.5x23.4/5.1
Probably smallest 8 day vintage movement.
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Lemania
31.8 / 6.7
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Juvenia (A.Douard?)
33.4 / 6
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Angelus cal. SF-N 9 (tentative cal no, according to this)
32x21.5 / ? (I haven't measured the thickness yet)
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Hebdomas
42.2 / 10.4
Probably the most popular vintage 8 day movement. Sometimes they are found of the smaller size (~35mm?), but this one is most popular. As usual for Hebdo balance is on the dial side, although sometimes it's fully covered by the dial (like it was on in this one)...
Image
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LeCoultre
43.0 / 5.3
LeCoultre has made a few of 8 day movements, but this one is the most good looking :)
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Movado 310M
43.2 / 8.6
Very weird inscription on this one: 15 jewels, 2 substitutes for jewels :crazy:
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Wasner et Fills, Besancon (French, not swiss made)
45.0 / 7.2
This particular movement has no markings.
It has oversized main plate - I've seen these for sale with the mainplate of the more usual size (~43mm).
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Mathey-Tissot alarm (A.Schild cal, but I forgot the no :) )
47.5 / 10.7
Size is overall, but the movement has an additional plate mounted on the mainplate, which houses some of alarm parts - without that, it's ~42-43mm dia.
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Octava
54.2 / 10.5
This particular is 24 lignes, but they were made in 19 ligne size too. Usually they are marked Octava, rarely are sterile. These movements were used by Rolex for their travel clocks.
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Waltham 37 size :mrgreen:
61.2 / 13.1
Probably the biggest "watch style" movement that I know of :)
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Last edited by spade_lt on April 3rd, 2020, 1:43 am, edited 5 times in total.
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Tanukjaju
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Re: 8 day movement database

Post by Tanukjaju »

I’ve never seen the Movado movement till today... seen many clocks but never the movement.
:shifty:

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VanSong
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Re: 8 day movement database

Post by VanSong »

Thanks, this is some great info to know!

I have also come across this vintage plane dash clock with a 8 days movement and has a unique BEZEL winding/time adjusting movement.

See attached image, does look like the Herdomas I think.Image

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Yoda
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Re: 8 day movement database

Post by Yoda »

Angelus SF240, Octavia, Wakmann, Elgin 37S, more...

I think that I remember that small A. Michel cal. 50 from a while back.
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sully008
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Re: 8 day movement database

Post by sully008 »

I have a Cornioley double barrel 8 day movement and its rebranded Hamilton version. Unfortunately the Hamilton doesn't work anymore.
f_zps6d6a7453.jpg
b_zpse91755d6.jpg
a_zpsc594ecaf.jpg
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sully008
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Re: 8 day movement database

Post by sully008 »

Here is the Hamilton:
dscn2525.jpg
dscn2526.jpg
dscn2527.jpg
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Re: 8 day movement database

Post by Yoda »

sully008 wrote: October 26th, 2018, 9:35 am Here is the Hamilton:

dscn2525.jpg


dscn2526.jpg


dscn2527.jpg
I remember the Hamilton branded one, pity that it had such a rough life...
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Natas78
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Re: 8 day movement database

Post by Natas78 »

thanks for the info guys!
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Re: 8 day movement database

Post by spade_lt »

To add to the "database":

Hebdomas cal. 33
As the name says, the diameter ir ~33mm
(photo reused from sales thread by djoleamag)
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Re: 8 day movement database

Post by spade_lt »

sully008 wrote: October 26th, 2018, 9:34 am I have a Cornioley double barrel 8 day movement and its rebranded Hamilton version. Unfortunately the Hamilton doesn't work anymore.
[mention]sully008[/mention] What is size of this movement?
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