Seiko Cal. 6657 - 279

The Seiko 6657-279 represents an important milestone in Seiko's 1990 lineup. It features a Black dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-0c6388ac25b3]

Also known as: Silverwave, Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1990

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