Seiko Cal. 4420 - 473

The 4420-473 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-3cbb045520a1]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1979

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