Seiko Cal. 7024 - 639

The 7024-639 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7024 caliber with 33j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-e511133fa5c8]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1989

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