Seiko Cal. 6637 - 550

The Seiko 6637-550 represents an important milestone in Seiko's 1997 lineup. With its 19mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-087bd2934cc3]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1997

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