Seiko Cal. 6691 - 947

The Seiko 6691-947 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-e104129496f8]

Also known as: Helmet, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1987

Related Models

• Seiko 4586-400
• Seiko 4420-195
• Seiko 4485-873
• Seiko 3873-839
• Seiko 5623-877
• Seiko 6210-847
• Seiko 5269-992
• Seiko 4528-910
• Seiko 7181-837
• Seiko 6258-724
• Seiko 7196-458
• Seiko 5262-863