Seiko Cal. 5256 - 778

Released in 1973, the Cal. 5256 with design code 778 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-b80c2dab5ae5]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1973

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