Seiko Cal. 4521 - 730

The 4521-730 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4521 caliber with 33j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-91e4e05a1fed]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1989

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