Seiko Cal. 6257 - 663

Released in 1967, the Cal. 6257 with design code 663 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-1506baf4e9c6]

Also known as: Rally, Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1967

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