Seiko Cal. 3881 - 324

The Seiko 3881-324 represents an important milestone in Seiko's 1965 lineup. Powered by the 3881 caliber with 36j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-fce7321dfed5]

Also known as: Monster, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1965

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