Seiko Cal. 7163 - 728

The Seiko 7163-728 represents an important milestone in Seiko's 1973 lineup. Powered by the 7163 caliber with 29j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-2e62b5c7471f]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1973

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