Seiko Cal. 4556 - 451

This Automatic model from 1965 features a 44mm PVD Black case. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-a89e7ee465bb]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1965

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