Seiko Cal. 5657 - 631

The Seiko 5657-631 represents an important milestone in Seiko's 1980 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-b568f028c352]

Also known as: Rally, Goldfeather

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1980

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