Seiko Cal. 5693 - 644

The Seiko 5693-644 represents an important milestone in Seiko's 1999 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-6248403952d8]

Also known as: Sumo, UFO

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1999

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