Seiko Cal. 7120 - 231

This Spring Drive model from 1975 features a 37mm Hardlex-Coated Steel case. With its 18mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-b6d544d2c2fa]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1975

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