Seiko Cal. 4525 - 240

The 4525-240 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4525 caliber with 23j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-a0e6355448ce]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1971

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