Seiko Cal. 5663 - 745

The 5663-745 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5663 caliber with 25j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-0f7bc6e66945]

Also known as: Goldfeather, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1974

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