Seiko Cal. 4591 - 156

The 4591-156 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4591 caliber with 18j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-dad354b2d0bf]

Also known as: Helmet, Silverwave

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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