Seiko Cal. 5663 - 278

The Seiko 5663-278 represents an important milestone in Seiko's 1976 lineup. Powered by the 5663 caliber with 24j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-ba865a0ee5d3]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1976

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