Seiko Cal. 6657 - 298

The 6657-298 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-5208b71fdba7]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1982

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