Seiko Cal. 0747 - 528

The 0747-528 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0747 caliber with 28j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-c545276cf6ee]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1972

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