Seiko Cal. 4497 - 637

Seiko 4497-637

The Seiko 4497-637 represents an important milestone in Seiko's 1983 lineup. With its 20mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-fa47813a6ae9]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
13.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
28j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1983

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