Seiko Cal. 4528 - 311

The 4528-311 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4528 caliber with 28j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-cd335afeb727]

Also known as: Navigator, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1990

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