Seiko Cal. 6657 - 735

This Solar model from 1968 features a 36mm Gold-Plated case. With its 22mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-ace9b04a5dda]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1968

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