Seiko Cal. 0781 - 424

The Seiko 0781-424 represents an important milestone in Seiko's 1973 lineup. Powered by the 0781 caliber with 30j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-0194e1be4429]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1973

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