Seiko Cal. 5645 - 774

The Seiko 5645-774 represents an important milestone in Seiko's 1966 lineup. Powered by the 5645 caliber with 20j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-19eaf1eb2a05]

Also known as: UFO, Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1966

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