Seiko Cal. 5221 - 443

The 5221-443 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5221 caliber with 27j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-4ff249deb632]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1986

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