Seiko Cal. 6678 - 136

The Seiko 6678-136 represents an important milestone in Seiko's 1985 lineup. With its 18mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-f299ad719f31]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1985

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