Seiko Cal. 5640 - 184

The 5640-184 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5640 caliber with 23j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-623bd3d26e9e]

Also known as: Rally, Navigator

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1998

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