Seiko Cal. 6345 - 731

The Seiko 6345-731 represents an important milestone in Seiko's 1978 lineup. With its 19mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-aa1f06f092d0]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1978

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