Seiko Cal. 3896 - 840

The Seiko 3896-840 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d5bff742df42]

Also known as: Sumo, Arnie

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1971

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