Seiko Cal. 4551 - 443

This Spring Drive model from 1974 features a 39mm PVD Black case. With its 21mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-a17a7a0d8e90]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Burgundy

Jewels

33j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1974

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