Seiko Cal. 6686 - 137

Released in 1967, the Cal. 6686 with design code 137 was part of Seiko's domestic market collection. Powered by the 6686 caliber with 34j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-85b12f958da5]

Also known as: UFO, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1967

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