Seiko Cal. 5664 - 403

The 5664-403 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5664 caliber with 19j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-8e07830af9fc]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1982

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