Seiko Cal. 4571 - 665

Released in 1970, the Cal. 4571 with design code 665 was part of Seiko's domestic market collection. Powered by the 4571 caliber with 30j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-9eff4bc28b3d]

Also known as: Helmet, Arnie

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1970

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