Seiko Cal. 6634 - 421

This Spring Drive model from 1995 features a 40mm Two-Tone case. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-69b17888836d]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1995

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