Seiko Cal. 6663 - 531

The 6663-531 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6663 caliber with 24j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-6e57b7b3a487]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1969

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