Seiko Cal. 6647 - 171

This Quartz model from 1982 features a 40mm Titanium case. Powered by the 6647 caliber with 34j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-a389774c5197]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1982

Related Models

• Seiko 0727-547
• Seiko 6349-709
• Seiko 4558-794
• Seiko 7131-137
• Seiko 5664-428
• Seiko 4594-136
• Seiko 5675-836
• Seiko 6653-793
• Seiko 4581-718
• Seiko 7092-757
• Seiko 3886-831
• Seiko 4522-310