Seiko Cal. 5637 - 674

The Seiko 5637-674 represents an important milestone in Seiko's 1976 lineup. With its 20mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-c05a1931f4fc]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1976

Related Models

• Seiko 0745-934
• Seiko 5659-508
• Seiko 4488-343
• Seiko 6380-606
• Seiko 6686-881
• Seiko 6143-763
• Seiko 3893-271
• Seiko 4497-605
• Seiko 3818-297
• Seiko 4535-592
• Seiko 5298-572
• Seiko 6280-635