Seiko Cal. 6186 - 631

The Seiko 6186-631 represents an important milestone in Seiko's 1981 lineup. Powered by the 6186 caliber with 35j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-f791b0545b1c]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1981

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