Seiko Cal. 3816 - 683

The Seiko 3816-683 represents an important milestone in Seiko's 1977 lineup. Powered by the 3816 caliber with 33j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-edb9beb37683]

Also known as: Bullhead, Navigator

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1977

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