Seiko Cal. 6657 - 445

The Seiko 6657-445 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-8c8e66d79781]

Also known as: Silverwave, Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1982

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