Seiko Cal. 4457 - 331

Seiko 4457-331

This Solar model from 1975 features a 37mm Hardlex-Coated Steel case. Powered by the 4457 caliber with 23j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-3bb568f1ef65]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
15.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
White
Jewels
23j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1975

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