Seiko Cal. 0721 - 407

The Seiko 0721-407 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-bcce37fce7f1]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1975

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