Seiko Cal. 6642 - 971

The Seiko 6642-971 represents an important milestone in Seiko's 1973 lineup. Powered by the 6642 caliber with 17j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-c95a4e991055]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1973

Related Models

• Seiko 4521-529
• Seiko 3861-951
• Seiko 5229-910
• Seiko 5618-121
• Seiko 6164-154
• Seiko 4425-305
• Seiko 5696-908
• Seiko 7061-124
• Seiko 5673-236
• Seiko 7044-510
• Seiko 3884-819
• Seiko 5671-426