Seiko Cal. 7121 - 906

This Spring Drive model from 1975 features a 45mm Titanium case. With its 19mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-6215c358592f]

Also known as: Tuna, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1975

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