Seiko Cal. 5663 - 399

Released in 1987, the Cal. 5663 with design code 399 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-edb3ddc19a2e]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1987

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