Seiko Cal. 6687 - 683

The Seiko 6687-683 represents an important milestone in Seiko's 1985 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-6184a80e51ce]

Also known as: Sumo, Panda

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1985

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