Seiko Cal. 6155 - 531

This Spring Drive model from 1976 features a 46mm PVD Black case. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-5f238abe9b6e]

Also known as: Turtle, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1976

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