Seiko Cal. 4457 - 902

Seiko 4457-902

This Automatic model from 1978 features a 34mm Hardlex-Coated Steel case. Powered by the 4457 caliber with 30j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-dfb4f78a49ac]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Blue Sunburst
Jewels
30j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1978

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