Seiko Cal. 3881 - 554

The Seiko 3881-554 represents an important milestone in Seiko's 1988 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-073c9ad0ca71]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1988

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