Seiko Cal. 4556 - 790

The Seiko 4556-790 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-459b3ae15c54]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1971

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