Seiko Cal. 6658 - 499

This Kinetic model from 1978 features a 37mm Hardlex-Coated Steel case. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-7d6b9e2d80f1]

Also known as: Monster, Sea Horse

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1978

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