Seiko Cal. 3817 - 516

This Solar model from 1972 features a 37mm Two-Tone case. Powered by the 3817 caliber with 22j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-f6ea58a4d242]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1972

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