Seiko Cal. 5640 - 247

This Quartz model from 1967 features a 44mm PVD Black case. It features a White dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-5ba7e749cffd]

Also known as: Sea Horse, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1967

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