Seiko Cal. 4581 - 221

The Seiko 4581-221 represents an important milestone in Seiko's 1967 lineup. It features a Silver dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-da099f2f625f]

Also known as: Rally, Silverwave

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

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