Seiko Cal. 6678 - 831

This Spring Drive model from 1972 features a 39mm Gold-Plated case. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-535c7f7bba33]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1972

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