Seiko Cal. 7181 - 439

The Seiko 7181-439 represents an important milestone in Seiko's 1991 lineup. Powered by the 7181 caliber with 19j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-92bd7bf5b76d]

Also known as: Tuna, Bellmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1991

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