Seiko Cal. 5687 - 781

This Automatic model from 1983 features a 39mm PVD Black case. Powered by the 5687 caliber with 17j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-e93d51a968ac]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1983

Related Models

• Seiko 5692-934
• Seiko 5617-770
• Seiko 5699-855
• Seiko 6677-760
• Seiko 0775-791
• Seiko 6385-755
• Seiko 3826-971
• Seiko 6198-499
• Seiko 5250-548
• Seiko 3821-596
• Seiko 5667-936
• Seiko 7063-500