Seiko Cal. 5663 - 903

The Seiko 5663-903 represents an important milestone in Seiko's 1987 lineup. Powered by the 5663 caliber with 23j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-29e76f5d1f60]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1987

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