Seiko Cal. 3891 - 221

The Seiko 3891-221 represents an important milestone in Seiko's 1988 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-d57648df05c2]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1988

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