Seiko Cal. 5663 - 540

The 5663-540 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5663 caliber with 26j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-d4507ca2d677]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1993

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