Seiko Cal. 6639 - 502

This Quartz model from 1975 features a 40mm PVD Black case. With its 18mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-5fa6090188ff]

Also known as: Turtle, Pogue

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1975

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