Seiko Cal. 6631 - 238

This Kinetic model from 1966 features a 43mm Stainless Steel case. Powered by the 6631 caliber with 27j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-95f5b1b57ffd]

Also known as: Samurai, Bellmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1966

Related Models

• Seiko 5235-943
• Seiko 7097-901
• Seiko 6694-450
• Seiko 6681-167
• Seiko 3894-298
• Seiko 7157-504
• Seiko 5699-225
• Seiko 4477-487
• Seiko 3886-664
• Seiko 6662-513
• Seiko 6260-428
• Seiko 5239-974