Seiko Cal. 7150 - 717

This Spring Drive model from 1975 features a 40mm Stainless Steel case. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-f0caa15518e8]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1975

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