Seiko Cal. 6638 - 376

Seiko 6638-376

The Seiko 6638-376 represents an important milestone in Seiko's 1994 lineup. With its 21mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-c0258e299101]

Also known as: Crown

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
14.7mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1994

Related Models

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