Seiko Cal. 6686 - 237

The Seiko 6686-237 represents an important milestone in Seiko's 1970 lineup. Powered by the 6686 caliber with 21j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-0718d070738a]

Also known as: Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1970

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