Seiko Cal. 4581 - 906

The Seiko 4581-906 represents an important milestone in Seiko's 1981 lineup. Powered by the 4581 caliber with 32j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-856ae11e0236]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1981

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