Seiko Cal. 4528 - 409

The 4528-409 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4528 caliber with 29j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-4065535cdf27]

Also known as: Helmet, Bellmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1983

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