Seiko Cal. 6257 - 401

The Seiko 6257-401 represents an important milestone in Seiko's 1981 lineup. Powered by the 6257 caliber with 23j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-86e83dbc76ed]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1981

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