Seiko Cal. 4556 - 664

The 4556-664 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4556 caliber with 28j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-f93c8d8d583f]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1991

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