Seiko Cal. 4438 - 314

This Hand-Winding model from 1981 features a 44mm Two-Tone case. With its 21mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-a33af45ad032]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1981

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