Seiko Cal. 5663 - 723

The 5663-723 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5663 caliber with 26j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-527988cafd85]

Also known as: Helmet, Flighty

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1994

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