Seiko Cal. 6645 - 549

Released in 1981, the Cal. 6645 with design code 549 was part of Seiko's domestic market collection. With its 19mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-ede562ff7ac6]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1981

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