Seiko Cal. 4528 - 604

The 4528-604 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4528 caliber with 30j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-303130b1808d]

Also known as: Samurai, Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1979

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