Seiko Cal. 6638 - 648

The Seiko 6638-648 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-b44599b231a1]

Also known as: Pogue

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1991

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