Seiko Cal. 4439 - 972

This Spring Drive model from 1977 features a 39mm Titanium case. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-ed319c31c7b4]

Also known as: Samurai, Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1977

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