Seiko Cal. 5633 - 644

The Seiko 5633-644 represents an important milestone in Seiko's 1980 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-7e382dc0ce9c]

Also known as: Pogue, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1980

Related Models

• Seiko 6671-748
• Seiko 5230-182
• Seiko 7050-710
• Seiko 6176-902
• Seiko 6225-619
• Seiko 7054-818
• Seiko 6182-816
• Seiko 6697-717
• Seiko 0755-272
• Seiko 6612-207
• Seiko 6261-750
• Seiko 7199-941