Seiko Cal. 4576 - 220

The Seiko 4576-220 represents an important milestone in Seiko's 1970 lineup. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-ce5bc2db9382]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1970

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