Seiko Cal. 5642 - 426

The Seiko 5642-426 represents an important milestone in Seiko's 1976 lineup. Powered by the 5642 caliber with 36j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-1ce5d579f234]

Also known as: Rally, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1976

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