Seiko Cal. 5657 - 988

The 5657-988 is a sought-after Kinetic piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-d6cf631aa119]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1987

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