Seiko Cal. 4478 - 235

The 4478-235 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4478 caliber with 20j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-98e9dd50850d]

Also known as: Monster, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1977

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