Seiko Cal. 4426 - 746

Released in 1965, the Cal. 4426 with design code 746 was part of Seiko's domestic market collection. Powered by the 4426 caliber with 28j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-ae767cd8fe10]

Also known as: Helmet, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1965

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