Seiko Cal. 3840 - 653

This Quartz model from 1969 features a 37mm Two-Tone case. It features a Black dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-51ec37a060fa]

Also known as: Sumo, Pogue

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1969

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