Seiko Cal. 4471 - 523

This Solar model from 1965 features a 40mm PVD Black case. Powered by the 4471 caliber with 19j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-70550e4a0a79]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1965

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