Seiko Cal. 4456 - 663

The 4456-663 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4456 caliber with 35j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-37c638529d02]

Also known as: Sumo, Rally

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1976

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