Seiko Cal. 5644 - 588

The Seiko 5644-588 represents an important milestone in Seiko's 1984 lineup. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-1ab81f83b41e]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1984

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