Seiko Cal. 5663 - 491

The 5663-491 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-26f737c7bec8]

Also known as: UFO, Goldfeather

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1981

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