Seiko Cal. 6331 - 746

The Seiko 6331-746 represents an important milestone in Seiko's 1999 lineup. It features a Black dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-3ce33be09d5a]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1999

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