Seiko Cal. 7140 - 668

The Seiko 7140-668 represents an important milestone in Seiko's 1991 lineup. Powered by the 7140 caliber with 27j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-316106b69fa9]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1991

Related Models

• Seiko 0732-715
• Seiko 6229-997
• Seiko 5671-228
• Seiko 6192-256
• Seiko 6130-561
• Seiko 4497-900
• Seiko 4530-502
• Seiko 6235-848
• Seiko 7136-181
• Seiko 6175-711
• Seiko 5643-695
• Seiko 5679-794