Seiko Cal. 5231 - 850

The Seiko 5231-850 represents an important milestone in Seiko's 1998 lineup. Powered by the 5231 caliber with 17j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-e1c9532330c1]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1998

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