Seiko Cal. 6221 - 998

This Automatic model from 1976 features a 37mm PVD Black case. Powered by the 6221 caliber with 31j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-b2a9a4f65450]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1976

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