Seiko Cal. 6678 - 553

This Spring Drive model from 1981 features a 36mm Two-Tone case. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-e0e1dc8ee48a]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1981

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