Seiko Cal. 6688 - 256

This Spring Drive model from 1966 features a 40mm Gold-Plated case. With its 20mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-91b04edaf27f]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1966

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