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Zenith – mainsprings for all calibers
136 calibers with mainspring dimensions
Choose the caliber of your Zenith movement. The caliber page shows the mainspring dimensions and – if in stock – the matching mainspring from our shop.
Note: We have transcribed this information to the best of our knowledge from the Générale Ressorts mainspring catalogue (GR 2, 1974). All information has been carefully checked but is provided without guarantee. Please check yourself before fitting that the mainspring fits, in particular height, diameter, thickness and length.
⚙️ All calibers
Zenith 0–99
- 4
- 5 1/2" Lov
- 5"-12
- 8 3/4 NSI
- 8 3/4" B
- 8 L NSI
- 8 NS
- 9 N
- 10 1/2 N
- 10 1/2 NS
- 10 1/2" B
- 10 2-106
- 10 L
- 10 N
- 10" NS
- 11 L
- 11-11 T
- 12 L
- 12 N
- 12" B
- 12" NVSI
- 12-3. 12-4
- 12-4 P
- 12-4-5
- 12-4-6
- 12-4-7
- 12-4-50
- 12-6
- 14 Vs 146-156 chr
- 15-16" N
- 17
- 17 3/4 BAS
- 17 3/4 N 17-28-1
- 17 3/4-12 size
- 17 3/4N 17-28 A
- 17" EG
- 17" EP
- 17" NI
- 17.1. 171
- 18
- 18 1/2 N
- 18 1/2 NVS
- 18 3/4" N
- 18-24-3 P
- 18-28-1 T/18-28-2 T
- 18-28-3 A/18-28-3 Ă 6
- 18-28-3 P/18-28-3 P 7
- 18-28-3 T/18-28-4 T
- 18.5
- 18.75
- 19 1/2"
- 19 Bas Vs
- 19 ch. de fer
- 19" N
- 19" NVS
- 19" NVS 1
- 19"" chrono
- 19-16
- 19-28
- 19-28-1 T
- 19-28-2 T
- 19-34-4 T
- 20 '/2 N-A.r
- 20 /2 ch. de fer
- 20 ÂĄ2 N
- 20"
- 20.5
- 21 1/2 ch. de fer
- 40
- 40 T
- 57
- 57-8-6
- 57.8
- 57.107
- 68
- 68.21
- 69
- 71 Aut
- 82
- 88
- 88 T
- 88-8
- 88-85
- 88.5 P
- 88.5 T
- 88.8
- 88.8-5
- 88.8-5-6
- 88.8-6
Zenith 100–199
- 106 New
- 106 P-50-6
- 106 SC/106-7
- 106-6
- 106-50/106-50.6
- 120
- 120 T
- 122 chrono
- 126
- 126 P
- 126-5-6
- 126-9
- 126-40
- 133-8 Aut
- 135
- 136 chrono
- 146
- 151-152
- 156
- 173 P
- 177
- 177 T. 177 P
- 177-6
- 177-7
- 193
Zenith 500–599
Zenith 700–799
Zenith 800–899
Zenith 1100–1199
Zenith 1500–1599
Zenith 1700–1799
Zenith 2300–2399
Zenith 2500–2599
Zenith Other