Seiko Cal. 5231 - 715

The Seiko 5231-715 represents an important milestone in Seiko's 1971 lineup. Powered by the 5231 caliber with 26j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-00dee84a9db2]

Also known as: Sumo, Silverwave

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1971

Related Models

• Seiko 3898-271
• Seiko 6396-762
• Seiko 4535-676
• Seiko 3872-124
• Seiko 6144-544
• Seiko 4532-141
• Seiko 6651-614
• Seiko 6314-949
• Seiko 5664-392
• Seiko 7022-821
• Seiko 0752-524
• Seiko 6343-858