Seiko Cal. 3891 - 556

The Seiko 3891-556 represents an important milestone in Seiko's 1983 lineup. It features a White dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-9c820e4d8f59]

Also known as: Helmet, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1983

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