Seiko Cal. 6657 - 358

The Seiko 6657-358 represents an important milestone in Seiko's 1971 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-2122d1fabcbc]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

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