Seiko Cal. 4481 - 254

The Seiko 4481-254 represents an important milestone in Seiko's 1987 lineup. Powered by the 4481 caliber with 17j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-edadb01c07ee]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1987

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