Seiko Cal. 4426 - 528

The 4426-528 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4426 caliber with 21j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-25720008a0e2]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1982

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