Seiko Cal. 4456 - 450

This Automatic model from 1977 features a 39mm Stainless Steel case. With its 22mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-a31bd8da6c6d]

Also known as: Sumo, Navigator

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1977

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