Seiko Cal. 3881 - 577

The Seiko 3881-577 represents an important milestone in Seiko's 1968 lineup. Powered by the 3881 caliber with 17j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-3341fdfccbb1]

Also known as: UFO, Goldfeather

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1968

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