Seiko Cal. 4528 - 804

The 4528-804 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-7dbe5da3e9fe]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1969

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