Seiko Cal. 6687 - 403

The Seiko 6687-403 represents an important milestone in Seiko's 1986 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-4d928806754d]

Also known as: Crown, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1986

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