Seiko Cal. 4456 - 641

Released in 1989, the Cal. 4456 with design code 641 was part of Seiko's domestic market collection. Powered by the 4456 caliber with 20j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-daffcf7df683]

Also known as: UFO, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1989

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