Seiko Cal. 5638 - 353

The Seiko 5638-353 represents an important milestone in Seiko's 1979 lineup. Powered by the 5638 caliber with 28j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-e0af5e1556f4]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1979

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