Seiko Cal. 5657 - 506

The Seiko 5657-506 represents an important milestone in Seiko's 1980 lineup. With its 18mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-5064f5d10467]

Also known as: Bullhead, World Timer

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1980

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