Seiko Cal. 3851 - 816

The Seiko 3851-816 represents an important milestone in Seiko's 1966 lineup. Powered by the 3851 caliber with 33j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-d5c0770a688f]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1966

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