Seiko Cal. 7172 - 991

The 7172-991 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-ffa8b62f5b3e]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1977

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