Seiko Cal. 5278 - 666

The Seiko 5278-666 represents an important milestone in Seiko's 1972 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-94cc28222dcd]

Also known as: UFO, Crown

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1972

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