Seiko Cal. 4554 - 507

The 4554-507 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4554 caliber with 17j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-415872c6671d]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1971

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