Seiko Cal. 6187 - 646

This Automatic model from 1974 features a 42mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-063d6ece2fe0]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1974

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