Seiko Cal. 7121 - 385

This Spring Drive model from 1972 features a 41mm PVD Black case. With its 19mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-32a4106d62b7]

Also known as: Sea Horse, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1972

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