Seiko Cal. 5240 - 528

The 5240-528 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5240 caliber with 27j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-183ccbf5580e]

Also known as: Silverwave, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1975

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