Seiko Cal. 5664 - 323

This Spring Drive model from 1967 features a 45mm Two-Tone case. Powered by the 5664 caliber with 32j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-5e2fec856cb6]

Also known as: UFO, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1967

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