Seiko Cal. 7163 - 721

The Seiko 7163-721 represents an important milestone in Seiko's 1980 lineup. Powered by the 7163 caliber with 24j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-c8c7532a4fa3]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1980

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