Seiko Cal. 5647 - 999

This Spring Drive model from 1968 features a 46mm Two-Tone case. With its 20mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-311f801f9c1a]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1968

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