Seiko Cal. 4489 - 310

The 4489-310 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4489 caliber with 20j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-2eb54cde8b33]

Also known as: Samurai, Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1982

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