Seiko Cal. 3881 - 181

The Seiko 3881-181 represents an important milestone in Seiko's 1994 lineup. Powered by the 3881 caliber with 31j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-3bb291126c7c]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1994

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