Seiko Cal. 5677 - 643

The Seiko 5677-643 represents an important milestone in Seiko's 1970 lineup. It features a White dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-f3078d91ff38]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1970

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