Seiko Cal. 0781 - 421

The Seiko 0781-421 represents an important milestone in Seiko's 1986 lineup. Powered by the 0781 caliber with 18j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-542a9c706d35]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1986

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