Seiko Cal. 6667 - 640

The Seiko 6667-640 represents an important milestone in Seiko's 1995 lineup. Powered by the 6667 caliber with 26j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-3d186b73922c]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1995

Related Models

• Seiko 6148-221
• Seiko 7034-621
• Seiko 6681-777
• Seiko 0737-938
• Seiko 7154-698
• Seiko 6273-199
• Seiko 4580-391
• Seiko 6128-773
• Seiko 5215-471
• Seiko 3888-589
• Seiko 6623-127
• Seiko 3859-385