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General Watch Co. (Societe d'Horlogerie La Generale, La Chaux-de-Fonds, founded 1895) was a US importer. Helvetia Watch Co. was its primary brand, renamed officially in 1949. Produced the world's first 'Big Date' watch (1932, cal. 75) and pioneered pilots' watches from 1932.

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Manufacturer Movement
Helvetia 64 Helvetia 64
Helvetia Manual 30.5 mm
Helvetia 65 Helvetia 65
Helvetia Manual 29.4 mm
Helvetia 66 Helvetia 66
Helvetia Manual 29.4 mm
Helvetia 80 Helvetia 80
Helvetia Manual 25.95 mm
Helvetia 82 Helvetia 82
Helvetia Manual 23.7 mm
Helvetia 90 Helvetia 90
Helvetia Manual 19.65 mm
Helvetia 101 Helvetia 101
Helvetia Manual 17.5 mm
Helvetia 102 Helvetia 102
Helvetia Manual 17.5 mm
Helvetia 106 Helvetia 106
Helvetia Manual 12.85 mm x 19.65 mm
Helvetia 110 Helvetia 110
Helvetia Manual 13.15 mm x 16.05 mm
Helvetia 111 Helvetia 111
Helvetia Manual 13.15 mm x 16.05 mm
Helvetia 120 Helvetia 120
Helvetia Manual 12.95 mm x 15.6 mm
Helvetia 132 Helvetia 132
Helvetia Manual 15.55 mm
Helvetia 133 Helvetia 133
Helvetia Manual 15.55 mm
Helvetia 750 Helvetia 750
Helvetia Manual 23.7 mm
Helvetia 800 Helvetia 800
Helvetia Manual 25.95 mm
Helvetia 80C Helvetia 80C
Helvetia Manual 25.95 mm
Helvetia 820 Helvetia 820
Helvetia Manual 23.7 mm
Helvetia 82C Helvetia 82C
Helvetia Manual 23.7 mm
Helvetia 830 Helvetia 830
Helvetia Manual 26 mm
Helvetia 831 Helvetia 831
Helvetia Manual 26 mm
Helvetia 833
Helvetia Manual 25.94 mm
Helvetia 834 Helvetia 834
Helvetia Manual 26 mm
Helvetia 836
Helvetia Automatic 25.94 mm
Helvetia 837 Helvetia 837
Helvetia Automatic 26.3 mm
Helvetia 838 Helvetia 838
Helvetia Automatic 26.3 mm
Helvetia 839
Helvetia Automatic 25.94 mm
Helvetia 841
Helvetia Automatic 25.94 mm
Helvetia 842
Helvetia Manual 25.94 mm
Helvetia 844 Helvetia 844
Helvetia Automatic 26.3 mm