Seiko Cal. 5638 - 223

The 5638-223 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5638 caliber with 24j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-5c17fc0eee94]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1987

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