Seiko Cal. 5644 - 998

The Seiko 5644-998 represents an important milestone in Seiko's 1970 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-afe5842820cf]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1970

Related Models

• Seiko 6337-980
• Seiko 5278-615
• Seiko 7112-344
• Seiko 0717-447
• Seiko 6368-558
• Seiko 6645-749
• Seiko 6647-639
• Seiko 6674-414
• Seiko 4538-635
• Seiko 6691-304
• Seiko 6343-576
• Seiko 5649-903