Seiko Cal. 6257 - 400

The Seiko 6257-400 represents an important milestone in Seiko's 1998 lineup. Powered by the 6257 caliber with 34j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-276ae70749af]

Also known as: Tuna, Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1998

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