Seiko Cal. 6644 - 781

The Seiko 6644-781 represents an important milestone in Seiko's 1990 lineup. With its 22mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-5be6fe25a913]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1990

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