Seiko Cal. 6397 - 425

This Automatic model from 1970 features a 40mm Two-Tone case. It features a Black dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-a487b09ee071]

Also known as: Sea Horse, Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1970

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