Seiko Cal. 6657 - 241

The Seiko 6657-241 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-ed75876ac50f]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1975

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