Seiko Cal. 6634 - 186

Released in 1987, the Cal. 6634 with design code 186 was part of Seiko's domestic market collection. With its 22mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-ea4baf23e635]

Also known as: Bullhead, Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1987

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