Seiko Cal. 3816 - 186

The Seiko 3816-186 represents an important milestone in Seiko's 1966 lineup. Powered by the 3816 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-8fbace2ee849]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1966

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