Seiko Cal. 6686 - 375

This Solar model from 1987 features a 37mm PVD Black case. Powered by the 6686 caliber with 35j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-d51b038f7511]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1987

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