Seiko Cal. 5656 - 998

This Quartz model from 1983 features a 40mm PVD Black case. With its 20mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-b19cea760e77]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1983

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