Seiko Cal. 6678 - 312

This Hand-Winding model from 1990 features a 37mm Two-Tone case. With its 21mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-14ee8ac04547]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1990

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