Seiko Cal. 6687 - 361

This Quartz model from 1983 features a 42mm Hardlex-Coated Steel case. Powered by the 6687 caliber with 26j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-c5cb1e35d970]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1983

Related Models

• Seiko 6314-143
• Seiko 7092-819
• Seiko 0799-930
• Seiko 6316-370
• Seiko 5646-319
• Seiko 5294-897
• Seiko 0739-200
• Seiko 6363-841
• Seiko 4543-158
• Seiko 0767-778
• Seiko 5276-326
• Seiko 4534-747