Seiko Cal. 6133 - 550

The Seiko 6133-550 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-767c59670655]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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