Seiko Cal. 5663 - 310

Released in 1976, the Cal. 5663 with design code 310 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-aebbf03cdd5d]

Also known as: Samurai, World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1976

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