Seiko Cal. 5640 - 493

The 5640-493 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5640 caliber with 20j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-a4afef0994dd]

Also known as: Sumo, Navigator

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1986

Related Models

• Seiko 6392-584
• Seiko 0761-190
• Seiko 7115-343
• Seiko 4448-507
• Seiko 0730-581
• Seiko 6695-528
• Seiko 6657-994
• Seiko 6378-438
• Seiko 6113-280
• Seiko 0780-430
• Seiko 3862-311
• Seiko 4420-272