Seiko Cal. 7121 - 916

The Seiko 7121-916 represents an important milestone in Seiko's 1974 lineup. Powered by the 7121 caliber with 29j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-173051f844d0]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1974

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