Seiko Cal. 4556 - 154

Released in 1981, the Cal. 4556 with design code 154 was part of Seiko's domestic market collection. Powered by the 4556 caliber with 21j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-8d88ae3cd7f5]

Also known as: World Timer, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1981

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