Seiko Cal. 7170 - 728

The Seiko 7170-728 represents an important milestone in Seiko's 1967 lineup. Powered by the 7170 caliber with 27j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-791f2efc2d20]

Also known as: Rally, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1967

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