Seiko Cal. 4439 - 689

This Solar model from 1968 features a 37mm Stainless Steel case. Powered by the 4439 caliber with 19j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-1cafa2c4049b]

Also known as: Tuna, Rally

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1968

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