Seiko Cal. 4561 - 594

The Seiko 4561-594 represents an important milestone in Seiko's 1981 lineup. Powered by the 4561 caliber with 21j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-4eecd79c66bb]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1981

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