Seiko Cal. 6135 - 634

The Seiko 6135-634 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-5e8fda36d1e3]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1987

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