Seiko Cal. 6687 - 174

This Hand-Winding model from 1984 features a 43mm Titanium case. Powered by the 6687 caliber with 27j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-b428d3371ea1]

Also known as: Monster, UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1984

Related Models

• Seiko 3898-618
• Seiko 5688-258
• Seiko 4563-579
• Seiko 6318-266
• Seiko 0710-788
• Seiko 6634-848
• Seiko 4532-307
• Seiko 7113-737
• Seiko 6373-819
• Seiko 7012-965
• Seiko 4523-979
• Seiko 5692-248