Seiko Cal. 0721 - 439

This Spring Drive model from 1987 features a 39mm PVD Black case. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-697ddb900e3e]

Also known as: Crown, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1987

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