Seiko Cal. 7057 - 428

Seiko 7057-428

The Seiko 7057-428 represents an important milestone in Seiko's 1976 lineup. Powered by the 7057 caliber with 24j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-3317818fb1f5]

Also known as: Baby Tuna

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
14.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
140m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1976

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