Seiko Cal. 6231 - 577

Released in 1999, the Cal. 6231 with design code 577 was part of Seiko's domestic market collection. Powered by the 6231 caliber with 34j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-ffcb5b0a93e1]

Also known as: Bullhead, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1999

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