Seiko Cal. 5663 - 904

The Seiko 5663-904 represents an important milestone in Seiko's 1983 lineup. It features a Navy dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-7f8c9daf125d]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1983

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