Seiko Cal. 4436 - 959

Released in 1968, the Cal. 4436 with design code 959 was part of Seiko's domestic market collection. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-7be3bafa3e5f]

Also known as: Sumo, UFO

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1968

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