Seiko Cal. 6639 - 970

The Seiko 6639-970 represents an important milestone in Seiko's 1986 lineup. Powered by the 6639 caliber with 29j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-8facbf8c5974]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1986

Related Models

• Seiko 0734-847
• Seiko 4598-777
• Seiko 6119-892
• Seiko 5688-269
• Seiko 5685-978
• Seiko 4556-641
• Seiko 7067-360
• Seiko 6347-311
• Seiko 4481-393
• Seiko 6138-323
• Seiko 6653-759
• Seiko 7189-602