Seiko Cal. 6281 - 644

The Seiko 6281-644 represents an important milestone in Seiko's 1976 lineup. With its 20mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-aa0ebf52df66]

Also known as: Sumo, UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1976

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