Seiko Cal. 6678 - 686

The Seiko 6678-686 represents an important milestone in Seiko's 1977 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-d394ac90ab49]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1977

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