Seiko Cal. 4421 - 408

The Seiko 4421-408 represents an important milestone in Seiko's 1966 lineup. Powered by the 4421 caliber with 29j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-92e9c4f279c1]

Also known as: Sea Horse, Arnie

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1966

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