Seiko Cal. 6642 - 406

The Seiko 6642-406 represents an important milestone in Seiko's 1967 lineup. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-aa0eef2f0bba]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1967

Related Models

• Seiko 6236-228
• Seiko 4422-555
• Seiko 4436-684
• Seiko 6396-934
• Seiko 3843-932
• Seiko 5616-622
• Seiko 6293-403
• Seiko 4593-809
• Seiko 0739-694
• Seiko 4584-900
• Seiko 6125-856
• Seiko 0741-832