Seiko Cal. 6644 - 663

The Seiko 6644-663 represents an important milestone in Seiko's 1993 lineup. With its 22mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-b8dfbef265a6]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1993

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