Seiko Cal. 4431 - 610

This Automatic model from 1974 features a 46mm PVD Black case. It features a Navy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-a30b13f906fc]

Also known as: Monster, Goldfeather

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1974

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