Seiko Cal. 6131 - 457

This Automatic model from 1972 features a 41mm Two-Tone case. With its 19mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-daf5f66d45a3]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1972

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