Seiko Cal. 4427 - 424

The Seiko 4427-424 represents an important milestone in Seiko's 1972 lineup. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-8147ffdc02cd]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1972

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