Seiko Cal. 6647 - 535

This Quartz model from 1970 features a 37mm Stainless Steel case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-45b7da65d7a8]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1970

Related Models

• Seiko 4420-226
• Seiko 6373-353
• Seiko 5642-361
• Seiko 0746-958
• Seiko 5639-806
• Seiko 5243-138
• Seiko 6319-238
• Seiko 7150-543
• Seiko 0788-946
• Seiko 6160-443
• Seiko 5627-404
• Seiko 6393-937