Seiko Cal. 6648 - 533

This Quartz model from 1978 features a 36mm Hardlex-Coated Steel case. It features a Silver dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-9422b4103f13]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1978

Related Models

• Seiko 6368-922
• Seiko 4454-854
• Seiko 6339-723
• Seiko 7071-345
• Seiko 6215-689
• Seiko 5679-212
• Seiko 5668-534
• Seiko 6369-425
• Seiko 5271-533
• Seiko 3817-243
• Seiko 7194-506
• Seiko 4450-608