Seiko Cal. 6638 - 873

Released in 1973, the Cal. 6638 with design code 873 was part of Seiko's domestic market collection. With its 18mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-fcb9ae820881]

Also known as: Shogun, Navigator

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1973

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