Seiko Cal. 3881 - 321

The Seiko 3881-321 represents an important milestone in Seiko's 1966 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-c98df5f4c992]

Also known as: Monster, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

22j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1966

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