Seiko Cal. 6231 - 361

The Seiko 6231-361 represents an important milestone in Seiko's 1978 lineup. Powered by the 6231 caliber with 34j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-da3bf361841b]

Also known as: Sumo, Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1978

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