Seiko Cal. 5664 - 108

The 5664-108 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5664 caliber with 21j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-fd6ccbc51580]

Also known as: Sumo, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1971

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