Seiko Cal. 3817 - 969

This Spring Drive model from 1987 features a 46mm PVD Black case. Powered by the 3817 caliber with 20j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-c4854bd3cc0b]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1987

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