Seiko Cal. 4521 - 148

The Seiko 4521-148 represents an important milestone in Seiko's 1970 lineup. With its 21mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-14b0f0ce9fd9]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1970

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