Seiko Cal. 6678 - 635

The Seiko 6678-635 represents an important milestone in Seiko's 1988 lineup. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-b5eb4a194cc7]

Also known as: Turtle, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1988

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