Seiko Cal. 6657 - 602

The 6657-602 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-ffb6fff1cb76]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1980

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