Seiko Cal. 4556 - 452

The Seiko 4556-452 represents an important milestone in Seiko's 1990 lineup. Powered by the 4556 caliber with 23j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-492f9c37b6ad]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1990

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