Seiko Cal. 5663 - 745

The 5663-745 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5663 caliber with 25j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-6da254c913f9]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1988

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