Seiko Cal. 4418 - 621

The Seiko 4418-621 represents an important milestone in Seiko's 1980 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-9aa357c8fc61]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1980

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