Help identifying and dating a Wittnauer watch.

Txike62

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Apr 2, 2022
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I purchased this Wittnauer watch it has a 24 hour dial and both the case and movement are made in Switzerland. It looks to me that the movement is a Longines. Is this possible? Any information would be appreciated.
Thanks

IMG_20220518_170354493_MP.jpg IMG_20220518_170400067_MP.jpg IMG_20220518_170429994_MP.jpg
 

roughbarked

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The movement is a dressed up ETA 1100. Here's an image of a Wyler dressed ETA 1100. Note that ETA allowed for distinctive plate changes.



This is an Eterna, the mother company of ETA.

Rolex used these in their Tudor line. This movement was used by many companies.

Zodiac didn't change the basic ETA plates but did add a calendar.


ETA later went on to convert this calibre to a simple chronograph.
 
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Txike62

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Thanks for the great info. After working on the watch this afternoon I was thinking it was an ETA movement. I found the numbers 1080 under the dial, does that mean anything?
 

roughbarked

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Thanks for the great info. After working on the watch this afternoon I was thinking it was an ETA movement. I found the numbers 1080 under the dial, does that mean anything?
Yes.
This was the base caliber.
All others were worked off it.

ie:
Remarks
differences not known between 1081, 1083, 1085, 1087, 1089, 1095, 1097, 1099, 1141, 1143, 1145, 1147, 1149, 1155, 1157, 1175, 1177, 1179, 1181, 1183, 1287

family/generations:
manual wind:
1080: 10.5''', H= 4.15mm
1081: 11.5''', H= 4.15mm
1093: 11.5''', date
1152: 10.5''', H= 4.5mm
1153: 11.5''', H= 4.5mm
automatic:
1256: -
1258: date
automatic, minor modifications:
1257: -
1259: date

Example, year: signature; shock device
ca. 1955: ETA 1080, Habmann* - DHK; Incabloc
(ETA 1081)

However, the 1100 series was;
family:
1100, 1102, 1104, 1106: 12'''
1101, 1103, 1105, 1107: 13'''
1113: 13''', prepared for date version
1114: 13''', date
1168: 12''', chronograph
Example, year: signature; shock device
1-3) ca. 1955: - ETA; Incabloc
(19 jewels)
4-5) ca. 1955: LOY, Lathin Watch Co, Swiss, 17 Jewels, Unadjusted - ETA; Incabloc
(actually 19 jewels, wrong signature for US import)

All in the words of Dr Ranfft.
 

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