Seiko Cal. 5642 - 644

This Spring Drive model from 1977 features a 36mm Two-Tone case. Powered by the 5642 caliber with 24j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-243362af9794]

Also known as: Emperor, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1977

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