Seiko Cal. 6691 - 551

The 6691-551 is a sought-after Automatic piece from Seiko's golden era. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-f8d740a689bc]

Also known as: UFO, Rally

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1988

Related Models

• Seiko 3876-389
• Seiko 6634-948
• Seiko 6326-306
• Seiko 6237-235
• Seiko 6259-179
• Seiko 7162-309
• Seiko 6288-518
• Seiko 5283-343
• Seiko 6265-657
• Seiko 7163-455
• Seiko 7164-825
• Seiko 6666-326