Seiko Cal. 6387 - 713

The Seiko 6387-713 represents an important milestone in Seiko's 1980 lineup. With its 19mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-ba22029cc9d2]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1980

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