Seiko Cal. 3831 - 364

This Automatic model from 1971 features a 34mm Gold-Plated case. It features a Cream dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-3155ee90a50b]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1971

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