Seiko Cal. 4564 - 636

The Seiko 4564-636 represents an important milestone in Seiko's 1999 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-040e7923696c]

Also known as: Tuna, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1999

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