Seiko Cal. 4437 - 490

This Hand-Winding model from 1968 features a 35mm Gold-Plated case. Powered by the 4437 caliber with 25j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-d0cabd498b1f]

Also known as: Shogun, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1968

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