Seiko Cal. 7163 - 642

The Seiko 7163-642 represents an important milestone in Seiko's 1991 lineup. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-1b3e6041ca78]

Also known as: Tuna, Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1991

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