Seiko Cal. 6164 - 165

This Automatic model from 1978 features a 37mm Two-Tone case. It features a White dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-ba665bbcf46d]

Also known as: Sumo, Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1978

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