Seiko Cal. 4421 - 596

The 4421-596 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4421 caliber with 27j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-7b084184a728]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1991

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