Seiko Cal. 3881 - 147

The Seiko 3881-147 represents an important milestone in Seiko's 1966 lineup. Powered by the 3881 caliber with 21j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-2bc053987773]

Also known as: Bellmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1966

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