Seiko Cal. 4566 - 939

The Seiko 4566-939 represents an important milestone in Seiko's 1999 lineup. It features a White dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-8f3122c07e07]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1999

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