Seiko Cal. 7170 - 528

This Spring Drive model from 1978 features a 38mm Gold-Plated case. Powered by the 7170 caliber with 28j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-b0e82b64dd3e]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1978

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