Seiko Cal. 4568 - 556

The Seiko 4568-556 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-b0de2a4908bc]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1977

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