Seiko Cal. 5644 - 790

The Seiko 5644-790 represents an important milestone in Seiko's 1969 lineup. Powered by the 5644 caliber with 30j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-d110a2e5eda9]

Also known as: UFO, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1969

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