SII Caliber VH31Manufacturer Seiko Instruments Inc. / SII / Hattori / TMI Caliber Number VH31, VH31A Type Quartz (mechaquartz) Lignes 10.5”’ Diameter...Quartz 941
SII Hattori Caliber VK64AManufacturer Seiko Instruments Inc. aka SII / Hattori / TMI Caliber Number VK64, VK64A Type Quartz (mecaquartz) Lignes 13.5”’ Diameter...Quartz 3645
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