Seiko Cal. 3867 - 211

The Seiko 3867-211 represents an important milestone in Seiko's 1973 lineup. Powered by the 3867 caliber with 31j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-d8d9b703d308]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1973

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