Seiko Cal. 4427 - 291

The Seiko 4427-291 represents an important milestone in Seiko's 1967 lineup. It features a Black dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-57a16b97a553]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1967

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