Seiko Cal. 4591 - 439

The 4591-439 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4591 caliber with 36j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-d02d1124e098]

Also known as: Sumo, Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1984

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