Seiko Cal. 6631 - 420

This Automatic model from 1982 features a 39mm Two-Tone case. It features a Navy dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-3f0016b0ff49]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1982

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