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1917 Chronograph ID: Lemania 13 Ligne Movement?

13 ligne 1917 chronograph lemania omega
Mark79
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Hi, I'm trying to find the maker of this 1917 chronograph.
Very similar to omegas of this eara.. Lemania connection.
13 ligne calibre.

Janneret/lemania is a possibility

Any info, cheers

Screenshot_20260418_140325_com_facebook_katana_ImmersiveActivity_edit_12028578321400.webp IMG_20260418_114411.webp Messenger_creation_ACFC6BC4-B10B-4C16-80A7-C49E78EFD4E0.webp
 
M
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13 ligne definitely narrows it down for that period. Does it have the Lemania/Janneret pallet fork geometry, or more of an Omega-style layout? That usually tells you pretty quickly which house made it.
 
Mark79
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M MikeCollects
13 ligne definitely narrows it down for that period. Does it have the Lemania/Janneret pallet fork geometry, or more of an Omega-style layout? That usually tells you pretty quickly which house made it.
Hello, thanks for your reply, I've been scratching my head..... I mean it's like a lemania, but not a lemania iff you know what I mean, I think it is based on a lemania 13 calibre as such.. So have been advised it could be by jeannerete?.
I've seen a couple of other examples in watches, but no info at all about this movement..
This is under the dial.. Many thanks Mark

Messenger_creation_ACFC6BC4-B10B-4C16-80A7-C49E78EFD4E0.webp Messenger_creation_0CDF2DC5-5087-4B89-96E8-3FE0D89FE374_edit_19003075747386.webp IMG_20260418_081137.webp
 
Mark79
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M MikeCollects
13 ligne definitely narrows it down for that period. Does it have the Lemania/Janneret pallet fork geometry, or more of an Omega-style layout? That usually tells you pretty quickly which house made it.
Sorry it's all I have, I don't have any photos more of individual parts..
It's definitely linked to lemania, just like the early omega chronos are.
There is no markings at all anywhere on the movement
 
Mark79
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M MikeCollects
13 ligne definitely narrows it down for that period. Does it have the Lemania/Janneret pallet fork geometry, or more of an Omega-style layout? That usually tells you pretty quickly which house made it.
Just got these from watchmaker

Messenger_creation_A0E23491-AF0C-46DA-8D86-FCE2D4C2E38D.webp Messenger_creation_B34E6C6C-B914-48A5-8437-355220F6890F.webp Messenger_creation_C6C9D52F-C7B0-4668-B24C-749E2E1A3871.webp Messenger_creation_E28159E7-E358-4C43-8857-3D7A3B6E43B9.webp Messenger_creation_9818470B-40FA-431B-99C3-14F1B96F2B50.webp Messenger_creation_0F1C9CBD-7C9E-42E6-942E-9EF52967DCD0.webp
 
Mark79
Posts
14
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4
M MikeCollects
13 ligne definitely narrows it down for that period. Does it have the Lemania/Janneret pallet fork geometry, or more of an Omega-style layout? That usually tells you pretty quickly which house made it.
Hi, it’s a lemania ……the model was the for runner of the omega calibre 28.9 …very interesting

IMG_2623.webp IMG_2622.webp IMG_2620.webp IMG_2621.webp
 
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