Seiko Cal. 5663 - 304

The 5663-304 is a sought-after Automatic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-35a78bfd0824]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1973

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