Seiko Cal. 5644 - 137

This Quartz model from 1983 features a 41mm PVD Black case. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-1ecbe2ab1424]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1983

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