Seiko Cal. 5663 - 815

The Seiko 5663-815 represents an important milestone in Seiko's 1979 lineup. It features a Navy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-a99769edf50c]

Also known as: Rally, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1979

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