Seiko Cal. 4421 - 188

The 4421-188 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-43a1df35890e]

Also known as: Crown, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1968

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