Seiko Cal. 6647 - 693

This Solar model from 1977 features a 35mm Two-Tone case. With its 18mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-fc8cb7154e0f]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1977

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