Seiko Cal. 6364 - 663

The 6364-663 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6364 caliber with 17j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-2d51432980c4]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1974

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