Seiko Cal. 5640 - 807

The Seiko 5640-807 represents an important milestone in Seiko's 1999 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-e5abc960d85c]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1999

Related Models

• Seiko 5649-669
• Seiko 3811-130
• Seiko 6350-538
• Seiko 0754-848
• Seiko 6228-369
• Seiko 6623-165
• Seiko 4517-828
• Seiko 6323-943
• Seiko 5270-259
• Seiko 5682-388
• Seiko 5226-595
• Seiko 5270-654