Seiko Cal. 6642 - 749

Released in 1974, the Cal. 6642 with design code 749 was part of Seiko's domestic market collection. Powered by the 6642 caliber with 30j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-41238a86c158]

Also known as: Sumo, Pogue

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1974

Related Models

• Seiko 3885-465
• Seiko 4427-455
• Seiko 3880-762
• Seiko 7034-778
• Seiko 5257-292
• Seiko 6232-114
• Seiko 7067-852
• Seiko 6237-869
• Seiko 5237-164
• Seiko 7112-755
• Seiko 6355-736
• Seiko 6398-375