Seiko Caliber 7830 No technical information found for this movement.Watches with the 7830 movement7830-50007830-50107830-50207830-50307830-50407830-50507830-50607830-50707830-50807830-50907830-51007830-51107830-51207830-51307830-51407830-51507830-51607830-51707830-51807830-51907830-52007830-52107830-52207830-60007830-600A7830-80007830-80107830-80207830-8030