Seiko Cal. 5640 - 103

The 5640-103 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5640 caliber with 22j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-09a80139f91b]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1994

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