Seiko Cal. 6133 - 251

The Seiko 6133-251 represents an important milestone in Seiko's 1978 lineup. With its 20mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-0a3e25b3917b]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1978

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