Seiko Cal. 5670 - 491

This Spring Drive model from 1976 features a 44mm PVD Black case. It features a Navy dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-bad94e799ce9]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1976

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