Seiko Cal. 4463 - 221

The Seiko 4463-221 represents an important milestone in Seiko's 1972 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-9706df917ca0]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1972

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