Seiko Cal. 6687 - 839

The Seiko 6687-839 represents an important milestone in Seiko's 1978 lineup. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-1fdad956ac85]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1978

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