
Zenith 18.5''' , Winding stem, DCN: 608
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DCN no: 608 -
Thread: 150 -
Fits cal: cal: 18.5''' NVS Bas VS: Lépine and savonette, no engraved cal. no.
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A: = 107 -
B: = - -
C: = 170 -
D: = 150 -
F: = 946
Versions with positive setting mechanism..
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18-28-3A: Breguet hair spring. -
18-28-3A-6: Pare-chocs. -
18-28-3P: Breguet hair spring. -
18-28-3P-6: Pare-chocs. -
18-28-3P-7: Breguet hair spring, swan neck regulator.
Versions with negative setting mechanism, nouveau
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18-28-1T: Lépine. -
18-28-3T: Lépine. -
18-28-2T: Savonette. -
18-28-4T: Savonette. -
19-28-1T: Lépine grandeur 19''' -
18-28-2T: Savonette grandeur 19'''
Versions with negative setting mechanism, ancien
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18.5''' NVS Bas VS: Lépine and savonette, no engraved cal. no.