Seiko Cal. 6646 - 888

The Seiko 6646-888 represents an important milestone in Seiko's 1978 lineup. It features a Cream dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-56bab7b4aa16]

Also known as: Bullhead, Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1978

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