Seiko Cal. 6135 - 233

The Seiko 6135-233 represents an important milestone in Seiko's 1987 lineup. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-4d9d76ded79e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1987

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