Seiko Cal. 6657 - 266

The Seiko 6657-266 represents an important milestone in Seiko's 1971 lineup. It features a White dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-4477960171a6]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1971

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