Seiko Cal. 6257 - 878

The Seiko 6257-878 represents an important milestone in Seiko's 1993 lineup. Powered by the 6257 caliber with 26j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-264fe0f937f7]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1993

Related Models

• Seiko 4456-187
• Seiko 7118-572
• Seiko 4516-131
• Seiko 0771-263
• Seiko 0783-173
• Seiko 0765-902
• Seiko 4410-328
• Seiko 5662-413
• Seiko 3817-880
• Seiko 6195-242
• Seiko 5215-333
• Seiko 6264-976