Seiko Cal. 4521 - 545

The 4521-545 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4521 caliber with 28j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-bbcd639be29f]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1980

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