Seiko Cal. 3891 - 581

The Seiko 3891-581 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-bf45d6357f19]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1966

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