Seiko Cal. 4521 - 410

The 4521-410 is a sought-after Solar piece from Seiko's golden era. Powered by the 4521 caliber with 23j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-6b2833a4ccd7]

Also known as: Goldfeather, Flighty

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1985

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