Seiko Cal. 6642 - 406

The Seiko 6642-406 represents an important milestone in Seiko's 1976 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-d7dd171cf87c]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1976

Related Models

• Seiko 0788-607
• Seiko 5229-892
• Seiko 5297-104
• Seiko 7093-590
• Seiko 6691-857
• Seiko 3814-423
• Seiko 0773-160
• Seiko 7073-238
• Seiko 6247-772
• Seiko 7066-771
• Seiko 6276-802
• Seiko 0756-730