Seiko Cal. 6681 - 856

This Hand-Winding model from 1972 features a 39mm PVD Black case. With its 18mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-35a6c85e396f]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1972

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