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Calibers produced by Helvetia (Switzerland)
General Watch Co
- Helvetia 18.5''' H4.8
- Helvetia 18.5''' H5.5
- Helvetia 30
- Helvetia 31
- Helvetia 32
- Helvetia 32A
- Helvetia 32BL
- Helvetia 33LI
- Helvetia 33SI
- Helvetia 51L
- Helvetia 51S
- Helvetia 51LI
- Helvetia 51SI
- Helvetia 64
- Helvetia 65, also known as Unitas 6310N
- Helvetia 66, also known as Unitas 6310N
- Helvetia 80
- Helvetia 80C
- Helvetia 81
- Helvetia 82
- Helvetia 82C
- Helvetia 90
- Helvetia 90A
- Helvetia 101, also known as Felsa 4122
- Helvetia 102, also known as Felsa 4122
- Helvetia 106
- Helvetia 106A
- Helvetia 110
- Helvetia 111
- Helvetia 120, also known as Cortébert 654
- Helvetia 132, also known as ETA 2412
- Helvetia 133, also known as ETA 2413
- Helvetia 750, also known as ETA 2390
- Helvetia 800
- Helvetia 800C
- Helvetia 820
- Helvetia 820B
- Helvetia 820C
- Helvetia 830
- Helvetia 831
- Helvetia 834
- Helvetia 837
- Helvetia 838
- Helvetia 844
- Helvetia 845
- Helvetia 846, also known as AS 1739
- Helvetia 847, also known as AS 1740
- Helvetia 861, also known as ETA 2522R
- Helvetia 868, also known as ETA 2520R
- Helvetia 869, also known as ETA 2532R
- Helvetia 871, also known as ETA 2502
- Helvetia 873, also known as ETA 2612
- Helvetia 878, also known as ETA 2500
- Helvetia 900