Seiko Cal. 6133 - 731

This Automatic model from 1966 features a 41mm PVD Black case. With its 21mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-df162446a7da]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1966

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