Seiko Cal. 5251 - 138

Released in 1967, the Cal. 5251 with design code 138 was part of Seiko's domestic market collection. With its 21mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-cd78727eb7b9]

Also known as: Sumo, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1967

Related Models

• Seiko 6265-314
• Seiko 6681-282
• Seiko 0777-764
• Seiko 4518-933
• Seiko 7088-358
• Seiko 5629-392
• Seiko 0793-858
• Seiko 4556-246
• Seiko 6370-950
• Seiko 0749-327
• Seiko 6683-976
• Seiko 4570-524