Seiko Cal. 3817 - 165

The Seiko 3817-165 represents an important milestone in Seiko's 1999 lineup. Powered by the 3817 caliber with 20j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-08085f1e613e]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1999

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