Seiko Cal. 3881 - 985

Released in 1976, the Cal. 3881 with design code 985 was part of Seiko's domestic market collection. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-7fa6b70ef9ed]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1976

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