Seiko Cal. 3816 - 821

The Seiko 3816-821 represents an important milestone in Seiko's 1970 lineup. Powered by the 3816 caliber with 20j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-ba6ae798ef39]

Also known as: Shogun

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1970

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