Seiko Cal. 3816 - 216

The Seiko 3816-216 represents an important milestone in Seiko's 1972 lineup. Powered by the 3816 caliber with 20j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-4180cd157a84]

Also known as: Bullhead, UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1972

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