Seiko Cal. 6642 - 709

The Seiko 6642-709 represents an important milestone in Seiko's 1967 lineup. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-006538adf54d]

Also known as: Bullhead, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1967

Related Models

• Seiko 4528-911
• Seiko 7126-696
• Seiko 4445-788
• Seiko 6637-387
• Seiko 7173-252
• Seiko 5259-239
• Seiko 3827-105
• Seiko 6163-575
• Seiko 3850-847
• Seiko 5639-284
• Seiko 4438-519
• Seiko 6348-981