Seiko Cal. 6658 - 163

Released in 1988, the Cal. 6658 with design code 163 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-032cea3db9f1]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1988

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