Seiko Cal. 6178 - 891

The Seiko 6178-891 represents an important milestone in Seiko's 1982 lineup. Powered by the 6178 caliber with 35j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-eadf0d81903a]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1982

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