Seiko Cal. 4446 - 566

This Spring Drive model from 1970 features a 38mm PVD Black case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-071dbd61cd5e]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1970

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