Seiko Cal. 6257 - 556

This Hand-Winding model from 1970 features a 40mm Two-Tone case. Powered by the 6257 caliber with 22j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-fae709633806]

Also known as: Rally, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Burgundy

Jewels

22j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1970

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