Seiko Cal. 4566 - 369

This Automatic model from 1975 features a 46mm Hardlex-Coated Steel case. Powered by the 4566 caliber with 35j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-843ca4ac28ea]

Also known as: Helmet, Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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