Seiko Cal. 6658 - 816

Released in 1990, the Cal. 6658 with design code 816 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-5deadd82cbcb]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1990

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