Seiko Cal. 6386 - 703

This Hand-Winding model from 1978 features a 37mm PVD Black case. Powered by the 6386 caliber with 17j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-cd75b7de083e]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1978

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