Seiko Cal. 3881 - 905

The Seiko 3881-905 represents an important milestone in Seiko's 1991 lineup. Powered by the 3881 caliber with 31j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-b84318e7f085]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1991

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