Seiko Cal. 6257 - 357

The 6257-357 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6257 caliber with 17j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-31414282348b]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1967

Related Models

• Seiko 4445-667
• Seiko 7062-905
• Seiko 5273-661
• Seiko 4423-477
• Seiko 4441-122
• Seiko 5682-791
• Seiko 6287-112
• Seiko 6253-448
• Seiko 6242-801
• Seiko 6324-623
• Seiko 6335-303
• Seiko 6240-701